Abraham Lincoln said that “No man is good enough to govern another man without that other’s consent”. A true leader gets people consent by helping them being independent and so genuinely free. An impostor gets people consent by making them dependent on him. When you become dependent, you lose freedom. When you lose your freedom, you move toward a direction in which one doesn’t need your consent anymore. This is imposture! True leaders aim for true freedom, the freedom that comes from independence. This requires goodness and greatness. You need goodness to value others interests as much as yours and greatness to put the interests of the nation above your own interests.