Not really. Neither students, nor, actually, patients of a doctor know whether the knowledge/treatment being given or recommended to them is “worthy,” or really what it is worth. That is precisely why I have a Ph.D. and they don’t and why a doctor has an M.D. and I don’t. One of the problems with higher ed has actually been overkill of the “students as consumers,” which has driven from universities necessary and useful courses to be replaced with “feminist studies” and “wine tasting.”
I can certainly spot the difference between an MD who uses proper diagnostic techniques and one who wants to heal me with crystals and homeopathy. You can tell when the treatment utterly fails you, if nothing else.
I submit that any student who is not aware of what the relative value of a college level instructor or course is, is probably not bright enough to be a college student. Someone ostensibly learning about a subject vital to his knowledge of the world and/or his particular Major should be able to determine if he got anything worthwhile out of a course. He should also be grown up enough to know if the fault for a blown course was his or the professor's.
Not that I think "X-ethnicity" Studies or "wine tasting" belong on a college campus, outside of Community College "for fun" courses. But that is a whole 'nother ball of wax.