Criminals Explain How They Justified Their Crimes to Themselves
https://www.vice.com/en/article/how-criminals-justify-crimes-psychology-gangsters-uk/
One justification that is not brought up in this article, is that at some point in the history of the human race, no person professed to possess anything. And then some individuals looked out and said all of this is mine, and all the others accepted that. You enter life with nothing and leave it the same way. It's just what happens in between time with people think they actually possess something.