I took a Philosophy course that emphasized Aristotle, Sartre, Plato, Freud, Karl Popper, and a handful of psychologists and other philosophers that I frankly didn't bother to remember ten minutes after the final.

It didn't tell me why I'd actually care about philosophy.

Other harder sciences sometimes had this issue -- most notoriously math -- but the answer to a math problem is the same no matter why you're interested in it. That's not really the case here, and that my instructors didn't even feel such an argument was worth mentioning is... frustrating.