I agree with what you say about someone's job generally having no impact on what they do privately, and that there are exceptions.
My view is that those who crave information about such stuff have otherwise very uninteresting lives.
As for some of these celebs, 'art' is stretching it a bit!
Likewise (at least ours) politicians - maybe the only art is to avoid answering any direct question, and fooling some of the people all of the time. Not bad, I suppose, for a job that requires zero qualifications and gets to run the country.
PPS - Quite right about manual transmissions! I think my DS semi-auto (which has a perfectly normal gearbox and clutch) is the best of both worlds.