There have been studies done that show that the prevalence of Dark Triad traits rises, the higher you look in a hierarchical structure. C-suites have roughly three times the prevalence of these traits compared to the general population. The selection is being done by the system.

Other societies (as an anecdotal example, the Inuit) have ways of removing such individuals from the population because of the damage they do to group survivability. Take one out ice-fishing, push him in the hole, 3 minutes later, problem solved.