During the Cold War, the CIA essentially astroturfed the popularity of some arts and artists.
https://en.wikipedia.org/wiki/CIA_and_the_Cultural_Cold_War
https://www.independent.co.uk/news/world/modern-art-was-cia-weapon-1578808.html
That is pretty much established fact. There are other arts and artists I don't know for certain about, but I think Superheroes in particular were one such project. This is based on Superheroes being a symbol of Individualism (vs collectivism) and the frequency of characters having radiation as a source of their powers.

