[practicalpants]

Certainly with caveats... I know a number of smart people who work there, but they primarily want a 'safe' thing for the resume and finances, and take their San Francisco lifestyle a little more seriously than their work-based challenges (if they are considered challenges). That's only a few data points granted.

[polarix]

Is it possible that this you've gathered this impression because you're interacting with them in the context of their San Francisco lifestyle, rather than the context of their professional workplace?