Many [psychopaths] are plainly unsuited for life in any community; some are as thoroughly incapacitated in my opinion, as most unmistakable cases of schizophrenia. Whether this is to be regarded as a more or less willful contrariness or as a sickness like schizophrenia, in which the patient is to be protected and looked after, may for the moment be put aside.
Mask of Sanity
This view of Cleckley sums up the argument still had today, but the question has changed. Instead of ‘willful contrariness’, because of a demonstrated absence of empathy, we now see the argument as is psychopathy an adaptation (behaviors enhancing reproductive success and the passage of ‘psychopathy’ into the next generation), or a disorder? In my opinion, the latter is true as a see no valid selection pressure against the non-psychopathic.