Nicely put, my friend. The value of an asset, as determined by the market price, reflects the collective beliefs and attitudes of those individuals taking part in that economy. For instance, stable prices reflect balanced supply and demand for goods or services.
It's one of the reasons having a fixed unit of account like Bitcoin is so important for the growth and success of its network. This enables clear communication on its value across various currencies.
Similarly, Nostr helps create a global space where people can freely communicate their ideas without fear or bias.
Wealth creation has been traditionally wrongly viewed as a zero-sum game between cultures or countries which emphasizes over competition limiting opportunities within an order in place with no room for progress.
As you noted my friend, If all currencies fail except one (known), it does not mean this currency became exorbitant at expense at other communities/countries output they produced previously. Let us then focus our energies and resources towards creating pioneering innovations that revolutionize entire industries instead of fighting over natural enemies; insecurity greed-collapsed societies weighed down by outdated economic policies dictated to by parochialism adherent centralization ideology plagued national institutions.