You can certainly infer how much a largely capitalist society values each skill set at this point in time. The GP is claiming that "suburban Chicago teachers make as much as Chicago-area software developers do", presumably implying that capitalist society in the suburban Chicago area values the labor of teachers and software developers equally.

This is a claim that I want to understand better, since I don't think it reflects the statistical reality. Typically, such claims cherry-pick tenured teachers with 15+ years of experience, and compare their wage with the average software developer wage, which is itself a very unclear number – for example, a lot of developers go on to be managers in 15+ years whereas teachers largely remain teachers.

Glad to be wrong on this though, and might consider moving to an egalitarian society like suburban Chicago.