There is nothing, absolutely nothing, in regard to the U.S. abandoning the gold standard that could be further from the truth.I can't see any prestige from the U.S. having to cancel these arrangements in 1971, due to massive social programs and lack of hard money.
That is nothing other than poor management (aka buying votes)
The U.S. abandoned the gold standard because it was unsustainable for reasons having nothing whatsoever to do with the nonsense you posted. The Bretton Woods accord for establishing exchange rates was doomed from the moment it was conceived. Keynes said so at the time and explained exactly why. Though Bretton Woods was in 1944, there was not full compliance until ~ 1957-8. Keynes predicted it could not last more than about twenty years. In practice, it didn't last nearly that long. The B.C. Accord established the U.S. Dollar as the world's reserve Currency, something that has been, and is still, a huge advantage to the United States. The gold standard, however, was bound to fail; yet it served its purpose, from the U.S. point of view, of helping to find acceptance for the dollar as the reserve currency. Today the dollar is no longer "the reserve currency", but rather "a reserve currency."