I can't help but feel that there's some sample bias going on here. Each example given is an person who is currently well-known for being an entrepreneur. By definition, they haven't moved on to something else. There's a tonne of people who've succeeded as an entrepreneur and then gone onto something else; venture capital (in fact most VCs partners are ex-entrepreneurs), politics or philanthropy, for example. The poin…
Can you name a handful? I don't argue that there are no such people, but I don't think there's a tonne of them.
And that's the thing. The ones that become mega-famous are typically the ones who have been around for an extended period of time - either through having spent the time building a single successful company (Bill Gates, Zuckerberg etc), or people who become well known for starting up multiple companies. If Bill Gates had retired 4 years after starting up Microsoft, how many people would even know his name now?
Rather than trying to identify people who've famously walked away after a few years and comparing them to the number of famous people who didn't, a far better measure would be to find random 20 entrepreneurs who have only been doing it for a couple of years and see how many of them are still doing it, either with the same company, or with a new company, in 10 years time.