Just ask yourself. Did you learn the course well enough that you could have done as well without those questions saved?
As others have said, we go to college these days for a fastpass to middle class. If you haven’t needed the knowledge since, maybe you got what you needed out of the class and you worked the system in a legal way. Or maybe you paid a lot of money for that class and yet cheated yourself out of the knowledge you were paying to be taught. On some level it comes down to how you feel about it.