One might be forgiven, I think, for arguing that no one fared well during or after the war.
Of course, that would require placing certain moral, spritual and/or emotional issues before considerations of profit.
Of course, I’m not referring to human feelings, wounds, deaths, etc.
If one thinks along the lines of a businessman or politician, it’s a different picture.
US financial, political interests reigned supreme. United Nations, UN, IMF, World Bank, a number of large/global businesses, investment banks, etc., etc., just some of the many interests that came out of WWII either new or improved. The rebuilding after a war is always an enormous opportunity for profit for those who are in the rebuilding business, either from the operational or finance side. Also, USSR gained much territory and emerged a superpower. Far too many changes to list here, certainly.
A whole new world emerged out of WWII when you think about it. Us poor “little people” tend to focus on the emotional, however; it can be a real eye-opening for us to see the big picture.