The German elite didn't surrender and hand over advanced secret knowledge. Wernher von Braun and his staff didn't belong to the inner circle. They were forced to promote the moon landing hoax like poodles in a golden cage. When they turned to be useless they were stealthily killed or mobbed out of service. Braun's death of cancer came far too quick but very conveniently before he could speak out some details.
Just my two cents.
You don't need gold to back a currency, you don't need jewels and diamonds to back a government, that's all rubbish, nonsense, nowhere conclusive.
The real currency are the people and the goods produced and running round (currency .... current ... flow ... stream .... energy .... goods to sustain the living of a multi-human organism).
All the dance around the gold value is irrational and of no real relevance for the economy.
Zecharia Sitchin talked about this also and he assumed that the origin of the high praise of gold was its practical value to protect Nibiru's fainting atmosphere .... at least less nonsensical than the back-our-currency claim.
Nice to argue with you, Junior.
You are a good gamer!