Whether they'd be able to make me study (it was a mathematical analysis course, though I do not think it matters) is a question that'd be hard to answer — I was already highly motivated with different topics: I was spending my time reading on CS topics like algorithm complexity, operating system development and building software interfacing with hardware. So another possible outcome would have been that I simply learned less of it due to lousy instruction — which was the case with a few other subjects.
Sometimes a teacher can also do a great job of getting you interested (also important) but I was focusing on quality instruction.