He's a multi-millionaire libertarian finance capitalist type, like a lot of the big names in the silicon valley transhumanist movement. He's also the guy responsible, maybe more than anyone else, for shaping the culture of that movement. His goal is not to better the human condition for everyone, but for himself specifically. He's said before that he basically thinks, if the poors get bionic eyeballs and the reverse-aging pills sometime down the line, great, but it's not a priority.