This makes me think: how would someone like Mark Zuckerberg handle this for his own internet presence? Or does he sidestep this issue completely by having assistants for nearly everything? I can imagine he doesn't do much more than look at .ppts and fire off emails. Do data brokers have any information at all on this guy?
There's concierge services for this kind of data removal. At a certain level of wealth I assume there are teams working on this with lawyers 24/7.