In reply to:
I recently read an article which featured Robert Hare and a number of other researchers who state. They do know right from wrong.
I this is quite a subtle point and not an easy one. I think that
intellectually psychopaths do know right from wrong because they have
learnt the difference. At least the socialised psychopaths who have been bought up in a supportive non-criminal environment do.
What they lack is the instinctive
feeling for what what is right and wrong, good/evil, that normal people possess. Everything feels the same to them, whereas we are restrained (partly) by the knowledge that if we commit evil actions we are going to feel really bad about it afterwards. That 'feeling bad about it afterwards', or before the event when even just contemplating an evil act, is what the psychopath lacks. Conscience. Remorse.
Conversely normal people also experience positive emotional feelings when behaving altruistically or 'doing good'. The psychopath also lacks these.
In the absence of these feelings is it any wonder that
all psychopathic action is based on the principle of 'looking after no.1. Gaining maximum material benefit for himslef and satisfying the other requirements of the psychopathic character (for instance maintaining dominance and staving of boredom - see thread "What motivates the P?")
So yes ...they DO know right from wrong, but as far as the psychopath is concerned these are just arbitrary labels - which
feel just the same i.e. not at all. Like red and blue are to somebody blind from birth.
the fact that they do know the difference is the reason that psychopathy is not a defence in law for illegal actions in the way that psychosis is. The pychopath knows what he/she is doing, knows it wrong, and makes a cost / benefit analysis - when chosing do do wrong / evil, personal benefit outweighing likelyhood of being caught and punished. Conscience doesnt come into that equation as the psychopath does not have one. Emotional deficit ('stone cold') is the root of psychopathy.
Most of the time, when the outcome of any action is not likely to have any serious negative impact, I doubt that whether something is 'right' or 'wrong', good or evil, even enters the psychopaths thoughts at all. Why should it? To the P it doesnt really mean anything.