Madison Powers raises the difficult problem of repugnant desires. The problem is not only difficult but pervasive, more pervasive even than Powers says. He notes that it affects hedonist, eudaimonist, and desire-fulfilment forms of utilitarianism; but it also affects the form of utilitarianism that uses a list of irreducibly plural values, so long as one of the values on the list is pleasure or happiness, and it can affect non-utilitarian positions as well for the same reason.