This was on Breaking Points today but I've had this thought for a while; Musk has said repeatedly that he is convinced we live in a simulation. I think this explains his actions quite well. He thinks he is in a game and he's trying to win, and everyone else in the world is an NPC. Hence why he's okay with shutting down cancer research, AIDS treatment in Africa, shutting down hospitals, etc just so he can pay himself hundreds of millions of dollars.