@Electric_Banana Said
I think you might be talking in defense of people whom do petty grey area things and are held under accusation in contrast to another individual's sense of self-righteousness.
I'm talking about extreme circumstances that involve harming or taking away from another.
Example: My smoking habit is no one else's business because it doesn't take away from them.
However if I'm stealing from the cancer research donation jar to buy my porn, I am taking away from and hurting others.
I'm not really talking in defense of anyone; if someone does something that is wrong in your perspective, then that doesn't change just because they don't think it's a problem.
But though I was talking about a smaller example, it can really be applied to anyone. Even Hitler thought he was doing good for the world; Jews were subhuman and their suffering was no worse animals in a lab, a controversial wrong at most. Slavers were giving their slaves a place to stay and a civilized example. Killing of innocents has been carried out by every culture in the history of the world in the name of war; we protect our people and destroy our enemies.
In any of these examples are people who are not justifying, but due to their values and their perspective they genuinely don't believe themselves to be doing anything bad or evil. Obviously this doesn't apply to everyone who does something that we deem as wrong; there are plenty of people who commit evils even though their own values and culture tell them it's wrong.
I was just bringing up the differences in values as one part of why people do wrong.