"Tim Ferriss that self-righteous naturally, or does he do it on purpose to gain more attention?"
Your personality is just a strategy that was devised by your two-year-old self in order to keep you safe and get attention: http://vimeo.com/16260822
That said, once you're an adult and you no longer rely on others for safety, you get to start over and make whatever changes you want. Obviously if you want to be famous then you need to choose live a life and adopt a personality that will make you famous. The whole package isn't especially natural or fun for anyone, but some people naturally have bits and pieces of their private persona that also work well in public if you ham them up a bit.
It's like Richard Branson. Do you think that Richard Branson wants to fly to tahiti to go rock climbing every weekend? Of course not. Some weekends he'd much rather curl up with a pot of tea and read the newspaper. But he can't, because he's Richard Branson and that's not what Richard Branson would do. Does he enjoy being Richard Branson? I'm sure there are things he likes about it, but most likely his personality was only really developed after he made a bunch of money to spend on personal coaching and stuff.