I feel people like Musk and Trump are more dangerous in general.

Zuckerberg, Bezos, Gates … etc. are the “traditional” billionaires. They are greedy but most of the time rational thus fairly predictable - you don’t expect them to do anything crazy.

Musk and Trump on the other hand are narcissists. They petty, vindictive, insecure, and have fragile egos. There is no telling what would set them off and how far they will go to get even over a perceived slight.