As far as I know, the last time someone offered to pay their mortgage with "self-esteem," the bank wasn't amused. WHO can say with a straight face that they are "above" a job, any job, if they are UNEMPLOYED, have a family, bills & enjoy eating once a day?
A decent, legal job is ABOVE collecting welfare checks as one sits on their butt, or worse, choosing an illegal activity to make money.
IMHO, the higher the degree, the MORE someone can learn by taking "such jobs," as you call them. I must say I find Annsalo's answer BRILLIANT as well as beautifully said. I agree with her completely, so it's not necessary for me to reiterate what she said so perfectly.
I do recall many years ago, as I was "busting butt," so to speak, before finishing school, meeting a woman my same age working right beside me. This woman had at one time, a very high-paying administrative position with influence and respectability (or so she thought.) When this mega company went bankrupt & down the tubes, obviously so did her job & her influence. Unfortunately, she was charged along with everyone else in this company with book-cooking, fraud & few other unpleasant charges.
The "waitress" job she worked alongside myself was how she was paying her massive legal bills. In other words, she had NO choice than to take that "lowly" job. Need I repeat the term, "Humility?"
Last Chapter? I went out to dinner to that same restaurant about 10 years after I'd worked there. You guessed it. That woman was still working there & had been promoted to Manager. She was happy & her life was back in order, with her priorities quite healthy!
I didn't have to ask her what she "learned."