Which is it, "all" or "90%?" I went to a private liberal arts college so maybe that automatically puts me and my classmates in the 10% but I did not think the overwhelming majority of us were there to make money. The fact that lots of students still major in subjects that can be very worthwhile and valuable but lack obvious paths to financial success (e.g. most of Humanities and a lot of Social Sciences) indicates "making money" is not why they're there.
You think universities should basically be trade schools. They're not and they shouldn't be. Trade schools should be trade schools but the U.S. has a dearth of them and many that fit the description aren't good enough.