Psychopathy, in many ways – though not completely, runs counter to evolutionary psychology. Evolutionary psychologists believe that many human behaviors have been hardwired over time due to the evolutionary desire to procreate and otherwise propagate the species into future generations. This is not a stretch by any means; we see this with dogs that have been selectively bred over time. German Shepherds, for instance, were bred in part for their protective personalities. Poodles, not so much.
I was listening to a psychology professor lecture on evolutionary psychology recently. She was discussing how evolution has incorporated behaviors into the human psyche. Even homosexual couples that will never reproduce are subject to this evolutionary drive:
Even if you will never have children, you still are subject to these evolutionary pressures to ensure the survival of your genes. Unless you are pathological, a psychopath, you have a drive to protect your siblings and their children and a desire to see the species live into the next generation.
The anecdote, while brief, sums up an important point regarding the psychopath. We tend to not care about anyone’s survival except occasionally our own.