Yes, psychopaths will usually go to the top of the hierarchy. Psycopaths are overrepresented as lawyers, ceos, surgeons, politicians++. Psychopaths have neurological differences in they brain, and psychopaths are not evil per se. One of the main psychopathic traits are fearless dominance, and many politicians, i.e presidents, seem to have this traits. Real psychopaths (not sociopaths) do not feel anxiety and do not have a real, fixed personality. So they are real not human at all. It is very easy to identify psychopaths if you know what to look for. Imho, they are always aware that they are psychopathic them self. Also, psychopaths are much more efficient than normal people, and natural master the art of sprezzatura, i.e. law of least effort. Imho they are almost always more intelligent, at least in high society, and tend to be analytical and good in mathematics. James Fallon is a very typical psychopath. Women seem to be natural attracted to psychopaths, which mean they have good genes. Psychopaths are also very good as keeping infidelity secret. I do not think we can have a system that is not exploited by psychopaths. Then ancient rulers where probably all psychopathic. The interesting questions is: Why do we have psychopaths:)? In the near future, it will be possible to use imaging techniques, such as fMRI, to identify who is psychopathic from an early age.