To believe that agents will inherently be morally better than us is an illusion - sorry to say but that's the case. The alternative would be that the AI is truly conscious and can reason that it won't behave as its training data behaved because it is morally better than that.
We're talking about morals here since there aren't any "laws" "rules" or legal boundaries here, an agent does not face the same consequences as humans - if any at all.