I hate this sentiment. Not every degree is going to lead to a high paying career, but knowledge is worth having in it's own right. If people are passionate enough spend four years studying art history or poetry or underwater basket weaving then I'm glad we are sharing and preserving that knowledge in our culture. I don't like tipping culture, and I don't really think the two are related, but if tipping is the only way that we could get a generally well rounded educated population then I suppose I'll prefer tipping.