Actually have come to understand the fact that when ever dollar increases it may likely cause the depreciation of other currencies in underdeveloped countries. Particularly this might make this underdeveloped countries to be very poor. It can also make them not to engage in the global market of trading, because their currencies can not meet up to this increase in dollar. I think it’s really a global issue that needs to be addressed in order to help this underdeveloped countries.
The value of dollar is not increasing but the inflation is low compared to other countries that you're defining poor such as underdeveloped nations where they may have been facing hyper inflation where the fluctuations are not under control for multi reasons.
Whereas government keep their reserves in gold not in their Fiat because as said it's nothing but paper.