You say that like it's a bad thing. When I was teaching at a local university, I had 152 students in my 2 intro econ classes. A full prof in History had a total of 9 students in all four of his classes. Since he was a tenured full prof, he was making about 25% more in income than I was. Part of the reason for the low enrollment was his field, but most was because he was a horrible teacher. The university did everything they could to get him to quit, but he refused.
The Humanities was always fighting to take more resources away from us (College of Business) because we always had more majors. Their concept was a static pie and the only way to get more was to take it away from someone else (...sorta like Democrats). With idle capacity, growing enrollments made everyone's resource base grow even if your share of the pie remained fixed. They never understood this...(Democrats: Economic growth is good; a rising tide lifts all boats.)
I’ve maintained for years that if Econ 101 was taught in high school it would be the death of the Democratic Party. By the same token, my pet peave is colleges who dump out degrees in performance without teaching credentials as the bulk of those kids will never work in the music field. If they do, it will be teaching private music lessons because they are not qualified to take over the local high school orchestra. That to me borders on fraud.