Yes the were very helpful to our space program but they were also Nazis it was certainly a massive trade off, was it worth it, that is an argument that can’t be decided
He also wrote Project Mars: A Technical Tale which talks has the name “Elon” in it.
Project Mars: A Technical Tale - Wikipedia
“Chapter 24: How Mars is Governed” states: The Martian government was directed by ten men, the leader of whom was elected by universal suffrage for five years and entitled “Elon.” Two houses of Parliament enacted the laws to be administered by the Elon and his cabinet.