>Teachers and engineers don't work for money. And there are often bad consequences for people who "don't work for money."

This is a metnarrative[0]. It is a thing that people say not because it is true but because it is useful to create a larger narrative that is perceived as useful within the social sphere. Peopl, especially engineers, are socialized to believe it and normed to say it. The result is very simply lower pay for their labor. It is a post hoc justificication.

[0] Sorry to lazy at the moment for a real cite so heres a wiki one...https://en.wikipedia.org/wiki/Metanarrative....A metanarrative (also meta-narrative and grand narrative; French: métarécit) in critical theory and particularly in postmodernism is a narrative about narratives of historical meaning, experience, or knowledge, which offers a society legitimation through the anticipated completion of a (as yet unrealized) master idea