I think they were being a bit extremist with their language to make a point. However, fun anecdote, at my high school one of the janitors was a multi-millionair

I think they were being a bit extremist with their language to make a point. However, fun anecdote, at my high school one of the janitors was a multi-millionaire (we lived in a fly-over state in a small city, so he was crazy rich by our standards). He made it all because he was extremely good at playing/investing in the stock market (he never had a professional job in his life). The economics teachers would invite him to speak to their classes on a regular basis.