I remember eating in the Google NYC cafeterias and seeing an older gentleman ALWAYS wearing a KORN t-shirt. Turns out it was...
(And when Fiber's headcount got substantially cut and I needed to find a new team, I ended up working in "Kornistan", so named because the org was run by David's son Jeff.)
Anyone sticking around that long at a famous company is almost certainly in it for the love of all things computers, not because they need the money.