Myself, Hammrubi, and Sigmund Freud

The argumentative discussion was on why Hammurabi created so many laws and why they were so harsh. My question was why the set of severe laws? Was it for personal gain or for the good of the people? I understand that laws are needed to give order, but I always concern over anyone claiming to have a divine right or calling to rule over a group of people. This usually ends badly and eventually everyone realizes that is was for personal gain. To support this idea I brought in Sigmund Freud’s id, ego and super-ego theory to prove that people in power can fall under this theory. For one the id is the pleasure principle in which case Hammurabi probably enjoyed being in power and displaying that gave him satisfaction. His ego was unbalanced causing his super-ego to take over his using the gods as an excuse to be extreme.