Most of the world’s trade is done in dollars, even for trade that never goes to the US.
Most of the world’s money transfers at some point go thru the western banking system, and quite often an American bank, even if both parties are not in America. This is how the US justified its’ anti-FIFA case: the bribes, though at never point involving any Americans or going to America, at some point went thru a US bank on their way to their target.
Everyone needs (or needed) dollars, and everyone needed the Western banking system. There was no real alternative, and to a large extent there still isn’t.


