 The last seems very implausible. Essentially it is the view that the fact that an act is (intended to be) beneficial for a person, and does not affect or violate the interests of others, settles the question of whether it may be done. Only a view which ignores the means by which good is promoted, and the ethical status of such means, can hold this. Any sensible view has to distinguish between good done to agents at their request or with their consent, and good thrust upon them against their will.