I think these guys get addicted to the power. Sure Mark Zuckerberg could spend all his time learning to cook Thai food or surfing or traveling, and we all love to do those things. But very few of us know what it feels like for him to walk into a campus of thousands that he commands and make choices all day long about what to do with them all.

I’m not saying that anyone would do the same in their shoes. But certainly the kind of person who likes to build a giant company will like being at the helm of it too. It’s not about more billions.