Granted, the concept applies specifically to platforms, but the idea is basically what capitalism is:
Be good to everyone
Be good to suppliers (supply-side economics)
Be good to shareholders and, subsequently, alienate both users and suppliers of content. The platform collapses.
Late-stage capitalism is when shareholder wealth is maximized at the expense everyone else. So you have 3 billionaires with 50% of the wealth of all humanity or something, the middle class squeezed into oblivion, and a roiling undercurrent of pure fucking rage ready to sever heads like watermelons from a vine.