I think evil feeds off of good things.
Demons possess bodies. Liars use, confuse, twist, and pervert the truth. Criminals steal good things that belong to others. A lot of evil companies started out as good companies. Evil lawyers and judges exploit an existing system to do injustice. , that at least in America, was about the best humans could do, to ensure justice.
It's why Satan wants what belongs to God, because he can't make it himself.