My ex-Twitter employee coworkers beg to differ. They made plenty of money before Elon came around. Once he was in the company, one of them actually hired a personal attorney to confirm that he wasn’t going to be burned by the things Musk was asking him to do, before he finally decided it wasn’t worth it to work there anymore and left.
I think Musk is odious but I think there's a lot of complicating evidence to the story of what happened at Twitter. And: very smart people, like Dan Luu, were complaining about their culture long before Musk arrived.