Roots of the Disorder
Are the psychopath, sociopath, and someone with the Antisocial Personality Disorder one and the same? The DSM says "yes". Scholars such as Robert Hare and Theodore Millon beg to differ. The psychopath has antisocial traits for sure but they are coupled with and enhanced by callousness, ruthlessness, extreme lack of empathy, deficient impulse control, deceitfulness, and sadism.

Like other personality disorders, psychopathy becomes evident in early adolescence and is considered to be chronic. But unlike most other personality disorders, it is frequently ameliorated with age and tends to disappear altogether in by the fourth or fifth decade of life. This is because criminal behavior and substance abuse are both determinants of the disorders and behaviors more typical of young adults.

Psychopathy may be hereditary. The psychopath's immediate family usually suffer from a variety of personality disorders.

Cultural and Social Considerations 

The Antisocial Personality Disorder is a controversial mental health diagnoses. The psychopath refuses to conform to social norms and obey the law. He often inflicts pain and damage on his victims. But does that make this pattern of conduct a mental illness? The psychopath has no conscience or empathy. But is this necessarily pathological? Culture-bound diagnoses are often abused as tools of social control. They allow the establishment, ruling elites, and groups with vested interests to label and restrain dissidents and troublemakers. Such diagnoses are frequently employed by totalitarian states to harness or even eliminate eccentrics, criminals, and deviants.

Characteristics and Traits 

Like narcissists, psychopaths lack empathy and regard other people as mere instruments of gratification and utility or as objects to be manipulated. Psychopaths and narcissists have no problem to grasp ideas and to formulate choices, needs, preferences, courses of action, and priorities. But they are shocked when other people do the very same.

Most people accept that others have rights and obligations. The psychopath rejects this quid pro quo. As far as he is concerned, only might is right. People have no rights and he, the psychopath, has no obligations that derive from the "social contract". The psychopath holds himself to be above conventional morality and the law. The psychopath cannot delay gratification. He wants everything and wants it now. His whims, urges, catering to his needs, and the satisfaction of his drives take precedence over the needs, preferences, and emotions of even his nearest and dearest.

Consequently, psychopaths feel no remorse when they hurt or defraud others. They don't possess even the most rudimentary conscience. They rationalize their (often criminal) behavior and intellectualize it. Psychopaths fall prey to their own primitive defense mechanisms (such as narcissism, splitting, and projection). The psychopath firmly believes that the world is a hostile, merciless place, prone to the survival of the fittest and that people are either "all good" or "all evil". The psychopath projects his own vulnerabilities, weaknesses, and shortcomings unto others and force them to behave the way he expects them to (this defense mechanism is known as "projective identification"). Like narcissists, psychopaths are abusively exploitative and incapable of true love or intimacy.

Narcissistic psychopath are particularly ill-suited to participate in the give and take of civilized society. Many of them are misfits or criminals. White collar psychopaths are likely to be deceitful and engage in rampant identity theft, the use of aliases, constant lying, fraud, and con-artistry for gain or pleasure.

Psychopaths are irresponsible and unreliable. They do not honor contracts, undertakings, and obligations. They are unstable and unpredictable and rarely hold a job for long, repay their debts, or maintain long-term intimate relationships.

Psychopaths are vindictive and hold grudges. They never regret or forget a thing. They are driven, and dangerous.

I wrote this in the Open Site Encyclopedia:

"Always in conflict with authority and frequently on the run, psychopaths possess a limited time horizon and seldom make medium or long term plans. They are impulsive and reckless, aggressive, violent, irritable, and, sometimes, the captives of magical thinking, believing themselves to be immune to the consequences of their own actions.

Thus, psychopaths often end up in jail, having repeatedly flouted social norms and codified laws. Partly to avoid this fate and evade the law and partly to extract material benefits from unsuspecting victims, psychopaths habitually lie, steal others' identities, deceive, use aliases, and con for "personal profit or pleasure" as the Diagnostic and Statistical Manual puts it."