We got a free and democratic Europe. Over the last several decades, our investment in European freedom has repaid itself many times over. You could say the same for Japan, South Korea, and Taiwan.
We don’t need to extract tribute from these countries to see the benefits. That’s what empires do, and throughout history empires inevitably end up spending even more money and blood to collect taxes and subdue people who don’t want them there and thereby bring about their own collapse.