People don't like to entertain the idea that determinism could exist. Specifically, the idea that some people are just born bad, mean, or unintelligent. When people commit crimes there is endless hand-wringing about how "society" failed them. They blame it on poverty, or abuse, or inequality, or racism, or anything which absolves the individual of their agency.
For the record, I am determinist-light. It's clear that some people are just born with sociopathy or low IQ, irrespective of their life experiences. These people would benefit immensely from early intervention.
AFAIK only psychopathy is purely genetic. The rest i believe are susceptible (although very resistant) to treatment as they are only partially genetic, and partially environmental (suffered abuse, neglect).
Some people are commenting people would fake/dupe the testers. Sure, some would be able to. But many (i'd wager the vast majority) wouldn't. People don't realise how difficult it actually is to fake being normal. The only reason people with cluster B seem to dupe so many is because we live in a day and age where they are able to jump from relationship to relationship and cut ties with the people they've mistreated or "found them out".
For the record, I am determinist-light. It's clear that some people are just born with sociopathy or low IQ, irrespective of their life experiences. These people would benefit immensely from early intervention.