I make 80k in Austin - a city that's still relatively high in terms of living costs, compared to the rest of the country.

On that I can afford to live in a very comfortable apartment without roommates, eat out at decent (non-fast-food) restaurants for basically every meal if I want to, have an active social life and hobbies, and still put about 10% into savings each month. I can easily say that making more money would not have an impact on my happiness.

The Bay Area is so non-representative of the U.S. that it's not even funny.