I've also seen interesting arguments on wether the prime directive is even moral at all, after all if space fairing civilisations are encountering you then they're probably going to imminently scoop up all the good interstellar real estate in your viscinity, not enlightening a civilisation is dooming them to be stuck with whatever resources are left when every other civilisation nearby has taken what it wants. (Lets be realistic there's no way every single group is going to abide by a treaty that grants primitive civilisations pre-emptive territory bubbles)