Recently, I heard a quote, "Intentions don't matter. Only results."
We should stop and think about that line for a few moments. It's harsh. Direct. Unyielding.
"I meant to spend time with my family. I wasn't trying to offend them. I wanted to love my wife better." I used to hear a line all the time during my years as a pastor, "They mean well."
This may be best identification of evil there is. Yes, I wrote "evil". This is a word we are typically only comfortable apply to Hitler, Stalin, and terrorist but, once applied to anyone we know, we shy away from it- not wishing to pass judgment. However, when Hitler woke up in the morning he did not twist his weird tiny mustache, cackle to himself, and rub his hands together whilst gleefully planning the next stage of his pogrom. He woke up, looked at himself in the mirror, and said, "I am doing these things for the greater good." and never questioned his actions because he was convinced of his intentions.
Evil people are the greatest of all self-deluders. The evil do not look in the mirror, they paint a false portrait and then claim it is their reflection. They know their actions and history but masterfully excuse each disaster by denying its existence, denying responsibility, or denying their motives in the first place.
After evil people have successfully lied to themselves, lying to everyone else is an easy task because the very person they are presenting to the world is an enormous lie. This is why evil people, by and large, are, socially, very nice people (hence Hitler was named Time's "Man of the Year"). They have to be because they are continuously trying to manipulate other peoples' perception of themselves to match the lie they tell themselves every morning when they get up.
The only time you will see the true inner demon of an evil person is if anyone attempts to stand in front of their "self-portrait" with a mirror and show them what they are truly like. At this point they will follow three predictable steps: 1. deny, deny, deny. 2. claim that the refection is an interesting perspective on what is happening (negotiating with the person holding it). 3. viciously attack the person holding the mirror.
The most evil people I know I have found in the most respectable of social circles and, most certainly, in church buildings. All of society understands that the true value in respectable social circles is "being nice". Therefore, these circles are also typically self-deluding. This is why such quotes as, "I don't trust a man who doesn't drink." from John Wayne ring so true to many of us who have known people who touted such "values" as teetotalling only to have other wild, far more serious, moral failings come to light later.
By no means do any of us have a complete, objective, view on ourselves but by looking at our current and past relationships and listening to friends that tell us the painfully and difficult truth we can question our own motives and admit, publicly and openly, our faults.
If you don't care for that method of living perhaps I can recommend a paint store so you may officially begin your self-portrait. You can call it a mirror.