What in our evolutionary history prompted the adaptation of psychopathy?

[Syzyg]

Was there some empathy-inducing predator that led to psychopathic traits being selected for, to the point that they still exist today?

 

[The Ugly One]

Since the vast majority of humans don't have it, it's more likely a mental disorder, like schizophrenia, homosexuality, or liking Rush.

 

[Moths]

led to psychopathic traits

But what if psychopathy is instead a degenerative defect of a particular part of the brain or brain development? Or perhaps something that sometimes occurs due to us evolving empathy over time?

 

[Absolutego]

You could make the case that lowered levels of empathy and higher ego-centrism can provide short-term gains by routinely taking advantage of the wider society's social contract, but long term it ends poorly as the community grows tired of the psychopath's shit and drives them out. Only a small portion of extremely skilled psychopaths whose ability to provide benefits to the wider group by essentially paying them off with the rewards of doing what nobody else will do succeed in the long-term.
Thing is, if it is inheritable instead of a recurring form of aberrant mental disorder, short-term success may be all that matters.

 

[Gangstalker #32194]

psychos are an evolutionary cul de sac and their brains are broken to the point where idk if it's accurate to call them human