Let's make sure to compare apples to apples, even when discounting the 9-month salary (no CS professor truly gets the summer off, that isn't how the academy functions):
* Entry-level software engineers have 0 months experience.
* Full professors in CS have 5 yrs of a Ph.D., and perhaps 2-4 years of postdoctoral experience, and 5-7 years of professorial work.