This is certainly an ethical dilemma to be sure. This is why it is best to sound out someone in a vague, indefinite way about their openness to receiving some support and gauge the likelihood of acceptance. Then if there is resistance, one can still go around that expectation by doing the session and leaving the implementation in the hands of the divine realm to do what is highest and best and it is very likely the higher self will agree to the healing work, knowing better than the conscious self, and the subconscious as well, what is truly advantageous to happen. But once people are asked directly about acceptability of a particular intervention and the individual vehemently rejects the idea, it is a breach of ethics to proceed anyway, even if you are certain this healing will be of great benefit. It is no different than the decision we make in the divine realm whether to help someone or not. If they spurn divine assistance, we do not impose that—it is our policy, so why should it not be yours as well?