Big fucking surprise! You can't teach people to go against their nature, just as you can never learn to ignore your instincts (You can force yourself, but that leads to depression and a sense of unfulfillment (Is it really a coincidence that as religion gets more and more power, people get more and more unhappy?)).
Our instincts are like a runaway train. You can't stop them, but you can lead them in on a path that that is not so destructive.