When did this start, actually? the first I can really think of is Jobs (at least in the billionaire category); treatment of Hubbard had a lot of the same vibes, but not the money.
It's the vibe in almost all of the big silicon valley companies and probably most of the smaller ones too. Founder worship etc. Just silicon valley culture I assume. I guess it takes a certain mindset to dedicate the prime of your years to making someone else incredibly rich.