Professors often have similar levels of education to lawyers and doctors, but typically get much lower salaries.This difference in income is likely to mean that:

Question

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The fact that professors, who have similar levels of education to lawyers and doctors, earn much lower salaries suggests that they must receive a compensating wage differential. This means that the non-financial benefits of being a professor, such as the opportunity to conduct research and mentor students, must be significant enough to outweigh the lower pay. This does not necessarily mean that university education is not valuable or that professors have a job that is more difficult than a doctor or lawyer.

Professors Often Have Similar Levels of Education to Lawyers and Doctors