A hermit, long forgotten by the rest of the world, lives a middling life all alone on a desert island. Eve kills the hermit secretly and painlessly, sell his organs, and uses the money to change the mind of a couple who had decided against having additional children. The couple's child leads a life far longer and happier than the forgotten Hermit's ever would have been.

Eve has increased QALYs, average happiness, and total happiness. Has Eve done a good thing? If not, why not?