From Wikipedia: Psychopathy (/saɪˈkɒpəθi/), also known as—though sometimes distinguished from—sociopathy (/soʊsiˈɒpəθi/), is traditionally defined as a personality disorder characterized by enduring antisocial behavior, diminished empathy and remorse, and disinhibited or bold behavior.
From Psychology Today: Psychopathy is among the most difficult disorders to spot. The psychopath can appear normal, even charming. Underneath, they lack conscience and empathy, making them manipulative, volatile and often (but by no means always) criminal.
Italicized emphasis is mine.
DSM V now lists what was formerly known as ‘psychopathy’ under the broad heading of ‘antisocial personality disorder’, which doesn’t really affect our usage of the term; DDA’s usage is somewhat archaic by clinical standards, but the average player understands what the word means and that’s what matters.
[quote=“Xfin, post:7, topic:10642”]It per monster that gives the guilt effect, more details would be that the effect isn’t really just a"100 = you completely stopped caring" but more you ‘slowly get used to it’ per kill
however Psychopath also blocks morale penalty for other things like making zlaves and killing NPCs[/quote]
The guilt penalty drops off gradually, reducing its effect bit by bit until you reach 100 kills.