Without Analogies, Logic Is Useless
You get zero wage as a college student. Education is directly related to the profits of those who hire you after you've already sacrificed some of the best years of your life. If that's the way they feel about it, why should we feel they'll treat us with respect after they hire us?
It's no different from being told in a job interview, "We'll give you a white-collar job, but only after you work four years here without pay at a blue-collar job."
Or construction companies saying to their hardhats, "We can't make any money off this building until it is finished. So you won't get paid until then."