 Impairments of moral competence come in degrees. Susan Wolf’s JoJo  (§3.2.1)  has localized impairments of the capacity to recognize and respond to moral considerations, but it is not clear that he is entirely immune to moral considerations. However, at the far end of the spectrum, we encounter more globally and thoroughly impaired figures such as the psychopath. In philosophical treatments, the psychopath is typically presented as an agent who, while retaining other psychological capacities, is entirely—or as nearly so as possible—incapable of responding appropriately to moral considerations. (This is something of a philosophical construct since real-life psychopathy admits of varying degrees of impairment, corresponding to higher or lower scores on diagnostic measures.)