Right but I think even with "Successful" exits your equity will most likely just get you back to level if you had instead spent the time at Google e.g.

Over a 25 year career, possibly. Especially the last 20 years as Google stock has performed so well!

Saying that, I've had some jackpots where there's no way Google compensation would have come close in the same window (couple million a year over a 4 or 5 years, for example). But other periods where it wasn't as good too.

Also, not everyone wants to (or can) work at Google. I personally enjoy building startups and everything that comes with it.