You can't raise a true sociopath. It is an anatomical difference in the brain. So there has to be that difference first. From there, the person can either proceed along a high arousal lifestyle (fighter pilot, CEO, racecar driver, boxer, infantryman etc), or that person can take a pathological lifestyle (criminal: bank robber, murderer, drug dealer, etc). Believe it or not, the difference is usually dictated by intelligence.
General S.L.A Marshall said that these fearless people were best suited for crew served weapons (i.e. machine gunners, bazookas, etc). Not sure how he came to that conclusion.