There is a mental illness of having no conscience, the social lubricant. The sociopath has a sense of entitlement and lies to take advantage of others.
Feeling sacrosanct, he can do no wrong and blames others for his mistakes instead of learning from them. He can have no friends, only victims, and has a miserable life.
I believe our president is afflicted with this curse.
Edd Dickerman, Fresno