FWIW I totally agree with that. What I (and several others) disagree with is the idea that the concept of fiduciary duty confers an obligation to pursue profit at the expense of all else.

Is there an incentive to do that? Yes, or at least it's obviously quite possible. But is there an obligation? No.

Relative to the comment you were responding to, it sounded like you were defending the idea that an obligation exists.

The distinction matters because if such an obligation did exist it would effectively excuse a lot of bad behavior.