His wants are at the center of every decision without regard for human suffering or loss of life. People are nothing more than props in his desire to consume.

deliberate cruelty.

That is what one of the psychiatrists who signed Duty To Warn said.
http://nymag.com/intelligencer/2017/04/yale-psychiatrists-cite-duty-to-warn-about-unfit-president.html

He has no core values, he does what delivers the most gain to him and a few select people close to him. He will fight for others only if he believe that helping them helps him.