I think to better understand why people are attracted to Fascism it is better to read about the rise of Mussolini than about the rise of Nazism. Mussolini essentially was going to make Italy "great again". He was a former socialist but not an internationalist. While communists promised economic justice, fascists promised a better prouder more powerful nation. Today you expect wealthy people to be economically liberal…
Oh, fascism can be great for the wealthy. Your company becomes an instrument of the state, turning your economic power into political power, and you don't need to worry about nonsense like Competition anymore.