Wow, living in Germany I graduated in CS with ~7k in loans. Just the idea that a government does not pay its childrens education is freakin me out and from my perspective seems to be a neo liberalism horror story.
As someone who was a lecturer for a top CS dept, I can tell you that professors do not get compensated the same as CEOs. You can use google to check salaries for public university professors in many places (since this information is public). When a CS PhD accepts a job at a University, they take a pay cut from what the private sector pays. A full professor makes under 200K, and that is at the top of the stack. The average take for assistant and associate profs (at top CS schools in North America) is more like 130-140K. Not what CEOs make!
Those adjuncts are often contingent, low-paid workers: http://www.nbcnews.com/feature/in-plain-sight/poverty-u-many...
http://www.nytimes.com/2014/12/19/opinion/your-waitress-your...
http://www.thenation.com/article/why-is-college-so-expensive...
The numbers you present themselves are in the top 25% or 33% (depending on which measure you look at) of earners as professors, all inclusive. The idea that most professors are well-compensated on the whole is absurd. Wasn't the old deal supposed to be "decent compensation, but not great, made up for with great benefits and tenure?" Now it's "terrible compensation and no benefits, no tenure."
Of course, the person you're responding to seems to be making their comment sarcastically in any case.