I don’t think it’s unhappiness. I think it’s the pressure of being in the spotlight and having every single thing they say and do heavily scrutinized in the court of public opinion. Also from a legal / governmental standpoint of parasites trying to extract their cut of the value they create. 

You know that feeling when you get on a video call for business and you feel like you’re performing to a certain extent because of what’s expected in that context? Imagine that times 1000 X and that is their everyday life.