See, I'm not so sure about that. Jeff Dean and Sanjay Ghemawat both joined Google when it was less than a year old, and still work in technical roles. If they e

See, I'm not so sure about that. Jeff Dean and Sanjay Ghemawat both joined Google when it was less than a year old, and still work in technical roles. If they each own > 0.1%, they would be billionaires. That seems possible for a very early hire, although I don't know how dilution/IPO would change that. If not billions, I think it's fair to assume they're each worth several hundred million.