Many wealthy people in vietnam were reduced to nothing when the currency became useless. The few smart people who had gold were able to move their wealth out.

Many wealthy people in vietnam were reduced to nothing when the currency became useless. The few smart people who had gold were able to move their wealth out. The entire world is going to go to shambles at once, that is a very low probability event compared to a region. Even during WW2 there were regions that were relatively untouched by the world war.