"Class" http://siderea.livejournal.com/1260265.html?format=light or a Slate Star Codex summary: "Staying Class" http://slatestarcodex.com/2016/01/30/staying-classy/

About the differences between economic class and social class.

An example question to consider:

why are electricians and plumbers less respected than university professors even though they often make far more money?