Andrea, I wonder if your generalization that "a great majority" of Uni students are well to do is accurate. I'm not so sure. Maybe a majority. Not a "great majority." I would encourage you to qualify your generalizations more carefully, both for accuracy and to avoid slighting the significant number of Uni students who wouldn't identify themselves as rich.
That said, your point is a good one. There are many unhappy people in this world who have gone to excellent schools and established themselves in successful, prestigious careers. Pursuing a course of study and a job field that you find fulfilling and rewarding is much more conducive to happiness than striving for success on someone else's terms.