It's easy to keep employees happy with good pay and benefits and a nice work environment, as long as the work is reasonably ethical and life-affirming and generally compatible with human well-being. Meta hasn't been any of those things in quite a while.

That good pay , benefit, nice work environment comes from destroying environment, communities, lying, cheating and so many other such wonderful things.

People do like to remain oblivious to all. Some go even further to blame company for their immoral activities but remain firmly in place as income from those activities is just too good to leave.