Dark Personalities in Society and Politics
There are said to be three dark personalities that cause social harm. They are the sociopath, the psychopath, and the narcissistic personality.

Sociopaths have no conscience, no sense of right and wrong, no empathy, nor any regard for the rights or feelings of others. They can often be recognized by how frequently they lie. They can also be manipulative, targeting one individual or group and making them a social victim. Some politicians seem to behave like this.

Psychopaths are sociopaths who are also very mean. Vladimir Putin, the President of Russia, is a prominent example. He orders the killing of political opponents and the bombing of towns in which many civilians are injured or killed. He has his generals throw thousands of troops at an enemy in battle, using them as cannon fodder, and not caring how many are killed as long as the battle line gradually advances.

Those with a Narcissistic personality disorder are sociopaths who are under the delusion that they are more important and more capable than other people. Lacking empathy, they feel entitled to verbally lash out at, persecute, or punish anyone of whom they disapprove. They have a strong need for admiration, approval, and attention, and hate being disagreed with, criticized, or ignored. Their feelings of entitlement give them away. You can guess which politician is the most prominent example of a narcissist in politics.

Conservative Versus Liberal Personalities
Magnetic resonance imaging shows that conservatives and liberals are born with physically different brains. A part of the brain called the amygdala, which processes emotions and resolves threats, is larger in conservatives. A part of the brain called the anterior cingulate cortex, an area that helps detect errors and resolve conflicts, tends to be larger in liberals.

People with Conservative personalities desire security, predictability, and authority. Their style is defensive, fearing danger, disorder, and uncertainty. They are often intolerant of ambiguity and have anxiety over death and systemic threats. They have a dislike of ethnic or social groups different from their own. They tend to reason emotionally rather than logically, and getting them to accept new ideas can be very difficult. Conservatives often seek work in institutions of power with clear outcomes, like finance, the military, and law enforcement.

Extreme conservatives may have both a larger amygdala and a smaller anterior cingulate cortex. They tend to see the world in simple two dimensional terms and are rigid and emotional in their beliefs. They also have a strong need to know who are the enemies in society. They often choose a conservative TV station as their only news source because that station tells them who the enemy is – currently illegal immigrants and liberals – unlike moderate news channels. Conservative news stations cater to, and capture, the extreme conservative mindset.