That's right. So if all the bitches would quit ruining it for everybody. But I don't think the young sluts should be able to trade for grade because they are too incompetent in a field then they should stay in the sex industry where they have value. So. Let's bust the teachers for wasting our tax dollars.
Student vs. Teacher, or similar situation for example at workplace is against the rules because it can put other students or workers in a unjust situation, where the worker or student gets better pay or grades just because he or she fuck with the boss or teacher. There is no "moral" in it, other than defending other people.
Incest however is completely different story and I agree, if it happens between consenting adults, it should be legal. Even the UN AIDS commission suggested it should be legal, because western justice system shouldn't punish twice of the same crime, and all laws against i****t should be abolished, because they hadn't found any evidence that i****t itself would cause trauma if it happens between adults. Other argument was that there are already laws to protect children.