There are no ethical billionaires.
Can’t remember his name (which was his point), but there was one who donated all but 1 million to causes, and left in his will that everything should be donated. All anonymously. He said nobody needs more than a million, and didn’t want to be named in things.
He was the only one who seemed to get it, and I can’t remember his name, which seemed to be what he wanted. All the rest are snakes.