If we were to take all preceding arguments seriously, couldn't that be explained by americans going to live in a low-cost-of-living country once they've earned their living?
(Don't know your country to know if that's true or not, but it's a possibility)
Are you looking for money or are you looking for a good life?
My country offers them both, people from lots of countries como here looking for money and also for a better way of living.
The lesson explains itself.