That isn't to say that a narrow view of a company's stakeholders isn't a problem, perhaps even a pervasive one. But most threads I've come across on HN et al on the topic have elevated it to the status of a religion, where people are utterly convinced that it's not possible for a company to be anything but blindly profit-driven.
[1] For those who don't know precisely what I mean by this, it essentially means that there's literally no possible action the accused could take to prove otherwise.
The unfortunate part is where this supposed doctrine is used repeatedly to excuse companies' worst behaviours: "Amazon cannot install air conditioning in warehouses that have people fainting in the summer, because that would clearly cost money and Bezos would be criminally liable for leaving money on the table".
Simply point to CEOs outrageous self-serving compensation and other perks, and numerous conflicts between active investors and management. https://en.wikipedia.org/wiki/Proxy_fight is a well known thing.
All those Fortune 500 CEOs probably know it's wrong. Otherwise they'd be thinking twice before implementing "Corporate Social Responsibility" programs.