My counter-example, however, was a grocery store I worked in in college where the manager wouldn't give the weekend off to one of the hardest-working, friendly shelf-stockers to attend his father's funeral. I was there. It really happened. He quit on the spot. I was right next them in this interaction. It was so enraging I wanted to quit out of moral-support, but I did not.
This sort of interaction is absolutely unfathomable in my current professional environment. Whenever I feel injustice, or underappreciated, I frequently remind myself of those times to appreciate what I have today.