Psychopath Analysis

According to Oxford and MacMillan definitions of Psychopaths: Psychopaths are people with mental disorders which makes them behave violently towards society, but "Not all psychopaths are violent" said Kevin Dutton.
Psychologists say about Psychopaths that they have a distinct set of personality characteristics, which include things like ruthlessness, fearlessness, mental toughness, persuasiveness and a lack of conscience and empathy, but is psychopathy absolute like if someone is psychopathy or not or does it have degrees of psychopathy. Studies say that genetic and non-genetic traits contribute to psychopath, but to pin down the genes that contribute to psychopathy directly maybe a hard task to achieve for the current technology and the correlations