The rocket boys were in before WWII, They were privately funded,
"I am aiming for the Moon, but sometimes I hit London." Werner von Braun
He would take funding from anyone, but it was not the cheapest path to usable rockets.
Tech moves in back rooms, until funding comes, and the sources of venture capital have other agendas.
Goddard was in in 1928? With liquid fueled. The details were there, before Buck Rogers?
Fifty million dead, the world economy spent on secret weapons, for sixty years, current half of US spending, has not been the best for the economy of building Buck Rogers cities, transportation, using so little of the planet to produce food, that the rest can be maintained as a Park.
It was a bad trade that gave power to the wrong people.
We could be three billion very rich and highly educated by now.