The USA has contributed to the development of plenty of flourishing economies. Panama is a rich nation thanks in large part to international cargo shipment. American tourists spend heavily in several other Latin American and Caribbean economies. South Korea is one of the most highly developed nations in the world, despite having been relatively poor prior to the Korean War. Canada and Mexico have benefited for years from NAFTA. World War 2 would have been very different for the Allies if it weren't for American weaponry and involvement. NATO may not have withstood the Cold War were it not for American might.

Maybe you can give some examples to support the narrative of Americans creating poor conditions in non-European countries. It's certainly not Afghanistan, which had been a warzone for a long time before 9/11, which provoked American involvement. And though it's possible, it's hard to argue that Iraqi instability was the sole result of American invasion, as Saddam had massacred several hundred thousand of his own citizens and was trying to change the ethnic makeup of northern Iraq to dampen Kurdish separatism.

So I'm not sure to which countries you are referring.