User blog comment:Icchi/About the initiation/@comment-11942246-20130821062524/@comment-11188061-20130821112119

There will probably be a 'hidden' rule though; Ozpin never said that he had told them all the rules.

In fact, I believe that even if the students who employed dirty tricks and PvP methods managed to obtain the highest score (robbing a relic, intentionally hurting a student etc), they will be failed because of the 'negative score' of these actions.

To defend mankind from the Grim, it is imperative that people do not become damagingly selfish to the point that they hurt those from their own side. In that case, admitting students who had sabotaged their own just so that they could pass the initiation is like inviting the Grim into your own belly.

In fact, do you even need to pass? All I remember was that they would grade you, but they never said that they would fail you even if you're absolutely shit at everything and score zero. The important to learn here is cooperation and comradeship, and the recognition that your true enemies are not humans, but the monsters who seeked to destroy everything.