I don't see that a contradictory. A job cleaning toilets or repairing cars can be dignified if you get paid a living wage, have reasonable working conditions, and aren't mistreated by your company.
Ask recent grads what they would think about a janitor position for $55,000 a year (average U.S. living wage). My guess is the percent who would be happy with that? < 1%.
I don't have a degree. I'd love a cleaning job I can actually live on. The last one I had worked the shit out of me and paid peanuts. See: the problem.
Not everybody goes to University, what example is that one?
A lot of people would be happy to take a janitor position if it allowed to live decently, without living in fear for your future.