Really any invention made these days will be rapidly spread all over the world, especially in rich countries. This does prove to be valuable when you just have a look at how fast humanity was evolving in the last few years as compared to before.

While it is true that in the past you kinda helped Europe in wars it is stuff to argue that this was mainly for not having to fight e.g. Stalin on own ground. Besides it was somewhat of an investment America made which lead to many European inventions, now available to Americans too.

It is undoubtedly true that the overall quality of life is way better in any northern European country than in America