When the disturbed character wants something, he doesn’t necessarily think about whether it’s right, good, or legal — or whether his pursuit of it might adversely affect anyone. He only cares that he wants it. His incessant concern for himself and the things that he desires creates a pattern of thinking which embodies an attitude of indifference to the rights, needs, wants, and expectations of others.
Persons with disturbed characters don’t act the way most of us do largely because they don’t think the way we do. Some will even advance points of view which they don’t really believe but which they want you to believe that they believe — all with a view to manipulating you or managing your impression of them.