Of all the household name tech leaders (Brin, Bezos, Musk, Jobs, etc), Zuckerberg really does strike me as the least substantial and most likely to be inauthentic. Obviously this is just a personal opinion but Facebook seems so laughably inconsequential compared to all of the companies that have made these other founders rich and famous. Apple invents incredible stuff. Google has organized the world's information in astounding ways. Musk is trying to change how energy is consumed (clown show aside). Facebook sells ads based on viral videos of cats falling off furniture and provides yet another forum for people to showcase their own vanity. It's not surprising to me that this is a guy who right before Facebook, created a website to compete with "Hot or Not".