Wrong! Psychopathic tendencies in many cases are genetic. It's hereditary, just like as an example haemophilia. If you have this than you totally insensitive to others emotion, pain struggle, and so on... Now, if in surplus you got the wrong kind of personality, tendency to violence, no restrain at all?
What you got?
Someone who needs care, that's what.
Genetics are not the sole cause for psychopathy. Hereditary medical conditions do not make people "bad".
Let's leave terms like "good" and "evil" to religious texts, propaganda and children's stories.
And before you go declaring me "Wrong!", you should check out what haemophilia actually is.