# Fiduciary duty and the conflicts baked into the fee model
In 2015, a Wells Fargo advisor could earn more by steering a client into the firm's own mutual fund instead of a cheaper, better-performing rival. That was legal. It was also, for many advisors, the entire business model. This lesson is about the gap between "legal" and "in the client's best interest," and why that gap sits at the center of how asset and wealth managers get paid.
A fiduciary is someone legally required to act in another person's best interest, ahead of their own. In wealth management, that means recommending what is best for the client, not what pays the advisor most.
Here is the catch: not everyone who gives investment advice is a fiduciary.
That two-track system is the root of most conflicts in this lesson. When the same person can wear both hats depending on the transaction, clients rarely know which standard applies to the advice they just got.
The SEC's own investor page explains the distinction plainly: see Investor.gov on choosing an investment professional.
Most managers charge a percentage of assets under management (AUM), the total client money they oversee. A common figure is around 1% per year for wealth management, though it varies widely.
AUM fees are often praised for aligning interests: the advisor earns more when your portfolio grows. Mostly true. But the alignment breaks in specific, predictable places.
Revenue sharing is when a fund company pays a brokerage or advisory firm to keep its funds on the firm's platform or "recommended" list. The client never sees this payment. It comes out of fund expenses.
The problem: the firm now has a financial reason to favor funds that pay it, over funds that do not, regardless of which is better for you.
Real case: In 2019, the SEC ran its Share Class Selection Disclosure Initiative, under which more than 90 advisory firms self-reported and returned over $135 million to clients for failing to disclose these arrangements. The SEC's own press release on the initiative documents the scale.
Proprietary funds are investment products the firm itself manages and profits from twice: once from the advisory fee, again from the fund's own management fee.
The incentive to steer clients into in-house products is obvious. So is the harm when those products underperform cheaper third-party options.
Real case: JPMorgan affiliates paid $267 million in 2015 to settle SEC and CFTC charges for failing to disclose conflicts, including preferences for the bank's own proprietary funds and third-party funds that shared revenue. The failure was not necessarily that the products were terrible. It was that clients were not told about the conflict driving the recommendation.
The same fund can be sold in different share classes, versions with different fee structures. Consider two:
If an advisor puts you in a higher-fee share class of the *exact same fund* when a cheaper class was available, you pay more every year for nothing. The advisor, or their firm, often collects the difference.
This is precisely what the 2018 to 2019 SEC initiative targeted. It is one of the clearest examples of a conflict that is invisible to the client and expensive over time.
The reason share-class and revenue-sharing conflicts matter so much is compounding. A fee difference that looks tiny in year one grows dramatically over decades.
Rough illustration (hypothetical, for teaching only):
| Item | Portfolio A | Portfolio B |
|---|---|---|
| Starting balance | $500,000 | $500,000 |
| Annual return before fees | 6% | 6% |
| Annual fee | 0.50% | 1.25% |
| Approx. value after 25 years | ~$1.90M | ~$1.58M |
The only difference is 0.75% in annual fees. Over 25 years, that gap costs roughly $300,000. These are illustrative figures, not a forecast, but the mechanism is real: fees compound against you the same way returns compound for you.
That is why a conflict pushing you toward a fund that costs 0.75% more is not a rounding error. It is a material transfer of wealth from client to firm.
Regulators have spent more than a decade trying to force the two-track system toward a single, higher standard.
The Department of Labor (DOL) issued a rule in 2016 that would have made anyone advising on retirement accounts (like IRAs and 401(kkThe average number of new users each existing user generates through referrals. Above 1.0, growth compounds on itself and becomes exponential.View full definition →)s) a fiduciary. It threatened the commission-and-kickback model directly.
Industry pushback was fierce. In 2018, a federal appeals court vacated the rule, meaning it was struck down and never fully took effect. The episode showed how much revenue depended on the conflicts the rule targeted.
The SEC then issued Regulation Best Interest ("Reg BI"), effective June 2020. It requires broker-dealers to act in the retail client's best interest and not put their own financial interest first.
Reg BIBITechnologies and processes that turn raw data into actionable insights via reporting, dashboards and analysis, so teams can decide based on facts rather than intuition.View full definition → is stronger than the old suitability standard but weaker than a full fiduciary duty. Critics argue "best interest" was left vague enough to preserve much of the commission model. Supporters say it at least forces disclosure and raises the floor.
Reg BIBITechnologies and processes that turn raw data into actionable insights via reporting, dashboards and analysis, so teams can decide based on facts rather than intuition.View full definition → also introduced Form CRS (Client Relationship Summary), a short plain-language document firms must give clients, disclosing services, fees, and conflicts. You can see the SEC's overview at Regulation Best Interest and Form CRS.
The DOL revived a retirement-advice fiduciary proposal (often called the Retirement Security Rule) in 2024, and it has faced ongoing legal challenges, echoing the 2018 fight. The pattern is consistent: each attempt to impose a uniform fiduciary standard collides with the fee revenue built on conflicts, and litigation follows.
The practical takeaway for professionals: the standard that applies to a given piece of advice still depends on the account type, the firm's registration, and the product. There is no single clean rule.
Knowledge check
1. What fundamentally distinguishes a fiduciary standard from a suitability standard in investment advice?
2. Why does the 'two-track system' of RIAs and broker-dealers create confusion for clients?
3. The AUM fee model is often praised for 'aligning interests' between advisor and client. What is the reasoning behind this claim?
4. Select ALL correct answers. Which of the following are accurate statements about fiduciary duty and the standards governing investment advice?
Select all the correct answers.
5. Select ALL correct answers. In what ways does the AUM fee model's 'alignment of interests' break down or create conflicts?
Select all the correct answers.
Not every AUM firm exploits these conflicts. The cleaner models share features worth recognizing:
When evaluating a manager (as a client, an allocator, or a competitor), these are the concrete signals of whether fiduciary duty is a practice or a slogan.