Hitler wanted everyone to praise him, he turned to the press, talked on the radio, did literature, paintings, and film into propaganda tools for attention and for people to like him, and hear about him. There are books that did not conform to Nazi beliefs, they were burned in a huge bonfire. Churches were then soon banned, school children had to join the Hitler Youth, or the League of German Girls.
I think that Hitler had a lot of self interest because he was doing things for himself and what he thought was right and would benefit everyone besides the Jews. He gave the non-Jews a free pass and advantages to them but just sent the Jews to camps