You really think US has so many scammers and fraudsters? You obviously have no idea how rotten outwardly-civilized societies such as South Korea are. The scale of investment frauds and various other scamming operations taking place there are a constant plague, and the regulators are comically unprepared to deal with it time after time. South Korea is also a notoriously group minded society built on Confucius ideals and a strong sense of nationalism / ethnocentrism. I've no idea how you arrived at your theory, but it just sounds incredibly adsurd to me.