What difference does it make?

When trying to understand people like Bill or Hillary Clinton and Barack Obama, consider this by Christopher Putnam:

This hypothesis is supported by the apparent success many psychopaths find within society. The majority of these individuals are not violent criminals; indeed, those that turn to crime are generally considered “unsuccessful psychopaths” due to their failure to blend into society. Those who do succeed can do so spectacularly. For instance, while it may sound like a cynical joke, it’s a fact that psychopaths have a clear advantage in fields such as law, business, and politics. They have higher IQs on average than the general population. They take risks and aren’t fazed by failures. They know how to charm and manipulate. They’re ruthless. It could even be argued that the criteria used by corporations to find effective managers actually select specifically for psychopathic traits: characteristics such as charisma, self-centeredness, confidence, and dominance are highly correlated with the psychopathic personality, yet also highly sought after in potential leaders.

The reasons we look up to these conscience-impaired people are unclear.

Most likely it has something to do with the confidence they exude, the ease they seem to feel in any situation—a trait that comes easily in someone essentially incapable of fear or anxiety. Maybe we’re easily suckered in by their natural glibness and charm. Or maybe on some level we envy the freedom they have, with no burden of conscience or emotion.