Being a ruthless cutthroat certainly has its advantages. Being unencumbered by the usual social requirements like empathy, mutualism, and reciprocation really frees you up to make some agile and dastardly moves. Still, the only friends you'll make will be “yes men” and sycophants, who are really only there to ride your coattails and feed off your scorched-earth rampage to the top, hanging around begging for scraps like a dog at the dinner table. When the house of cards eventually topples, these…