For a public company, the CEO has to be a public CEO. Everyone takes on a different persona (some sell themselves as business geniuses, others as creative geniuses, and others as someone you wanna grab a beer with). Some really like it, and some do it begrudgingly. But at the end of the day, you can't be the same CEO of a public company as you were when you were private.
I've never known Jeff to hobnob with celebrities, travel in luxury or abandon his company. I'm not sure he's a "celebrity CEO" as much as he just became a public one, although I don't know him personally.
(FWIW, this is the reason I'd never want to go public. I personally don't like the system, but that doesn't mean it's not how the system works.)