In the ‘20s, career criminals were labeled "psychopaths," but in the ‘50s such individuals were labeled "sociopaths." Currently they would most likely fit the diagnosis of "Antisocial Personality Disorder." Such individuals are basically career criminals.
Or politicians. Ops, same thing. :-)
IMHO, while it is easy to draws some general parallels sequentially between these labels, it would be wise to not to mix the labels/definitions as if interchangeable. The 11 different DSM-IV-TR Axis II personality disorders are very specific.
But, be afraid, be very afraid.