No. As others here have said, the distinction between middle and upper class is exactly that the upper class do not have to work.

And if you think $250k of job income in the Bay Area makes you upper class, all I can say is, if you were in that situation you would see how ridiculous that idea is. Housing is so expensive here that for most people, the bigger their income, the bigger their mortgage. And with a mortgage, you're tied down; you don't have the freedom to quit your job just because you feel like it.