Shareholder returns.
It has nothing to do with CEOs "already being rich", their job is literally to run the company properly so that the shareholders make more money.
Like it or not, that's how it is. Now, if this "crap" actually hurts the brand and the bottom line, they shouldn't implement it. If they are seeing more profits, and not many complaints, it's likely it will stay.
Moral faiure does not come into play.
https://www.nytimes.com/roomfordebate/2015/04/16/what-are-co...
(arguably)