They're wealthy because they were paid for not using their agricultural land, so they cropped down all the trees on parts of their land that they couldn't use, to classify it as agricultural, got paid, and as a side effect caused downstream flooding
There's a certain hubris to applying rules and regulations to a system that you fundamentally don't understand.
The moment the EU shows even a small sign of protectionism, the US complains. It's a double standard.