Imagine you have 100 sociopaths, all of them aiming for the top, all able to recognize each other in a crowd. Now you both compete and cooperate together to get to the top; the ones caught are written off, the uncaught ones sooner or later achieve the goal, even if only 10 out of 100 make it there.
Some headhunters specifically try to identify high-performing sociopaths for top management positions.