The other argument against capital punishment is that, aside from the satisfaction of watching someone who "deserves it" suffer, it doesn't really achieve any p

The other argument against capital punishment is that, aside from the satisfaction of watching someone who "deserves it" suffer, it doesn't really achieve any practical effect that detention doesn't. This makes even a single mistake morally unacceptable since it doesn't really "buy" anything. With MAID, the practical effect is a very direct and incontrovertibly causal alleviation of suffering on a large scale, which has to be balanced against potential induced suffering due to mistakes.