https://corpgov.law.harvard.edu/2012/06/26/the-shareholder-v...
https://www.legislate.ai/blog/does-the-law-require-public-co...
https://lawreview.law.ucdavis.edu/archives/56/5/end-sharehol...
https://news.ycombinator.com/item?id=20325023
https://en.wikipedia.org/wiki/Shareholder_value
So yeah, "fiduciary duty" is a real thing, but that's not quite the same thing as saying that every single decision has to be focused on nothing but profit maximization.