I think an important aspect is that, even if you're frugal, there's signifiers of class that you can easily 'turn on'. I'm pretty frugal myself (I drive a 15 ye

I think an important aspect is that, even if you're frugal, there's signifiers of class that you can easily 'turn on'. I'm pretty frugal myself (I drive a 15 year old hand-me-down from my parents, have the cheapest phone that will still function, and generally avoid buying anything new ever), but my upbringing was fairly comfortable. But I can definitely recognize that I'm able to fit in upper class settings, and can recognize easily when people can't. I think it's fair to say that an SF-based tech startup is a place where you're going to see a lot of these upper class signifiers.