I’ve never liked the idea of Superman as Space Jesus or Space Moses. To me a big part of Superman has always been a story about an immigrant. (Kal-el becomes Clark Kent as if he went through Ellis Island.)
I think you can understand a lot about those early Superman stories where he fights common criminals and the occasional mad scientist or robot when you parse it that way. Siegel and Shuster were two sons of Jewish immigrants. And the one thing that Jerry Siegel never talked about is the death of his father...when he was only 17, Mitchell Siegel was shot and killed by a robber at his second-hand clothing store.