True. I live in San Fran and would be much happier engineering for Wells Fargo than any startup (from a total-compensation viewpoint).
that's why it's so hard to hire.
This is probably more of an issue where the salary offered needs to match the risk of the job. There was an HN discussion some time ago about how wall street workers have to sign stiff non-compete agreements, but they get a substantial golden parachute if they are ever laid off.