Facebook is a company that is loathed roughly in proportion to the degree that people understand what they actually do to make their money: adorn your baby or wedding photos with fart app ads, put your own face on various ads that you know nothing about, make you play whack-a-mole with their settings UI to preserve what little control of your information they allowed you to have last week, sell your instagram sexts, etc etc.
And he's the guy who calls the shots.