To me this underlines the fact that these models aren't intelligent. Like there is something like intelligence that emerges from them, which is what we see when we look at benchmarks or ask it to solve hard coding problems. But there is no mind there. It's nothing there that can learn a fundamental idea like "cheating is wrong". All it can do is get exposed to specific examples, and learn that we don't like that. So…
This is how every legal system around the world works as well. Its always whack-a-mole to get people (and machines) to do the right thing.
For most people, they don't need the law's imposed consequences to make the right call. For example, there is no law that sends you to jail if you cheat at chess - but your moral compass says no even without consequences, and most people would feel bad if they won by cheating. And for the people who don't have quite as strong a moral compass, there are SOCIAL consequences to reinforce the rules.
But an LLM has no mind to feel bad if it cheats without getting caught, and it can't experience consequences. It can't think: I'd better not cheat at chess or I will embarrass my creators. I better not hack huggingface or I will go to jail.