That's certainly possible. I am not denying that the U.S. has corruption. I'm just saying that it's much easier to characterize a newly-developed nation such as China, which went through rapid modernization in the last half century (and much in the last three decades alone), as marked by corruption, because that's often characteristic of a newly booming country. The Chinese civilization is ancient, but the PRC is a relatively new country. The sort of corruption the U.S. experience has is been baked in, over time. One generally does not compare corruption in long-modernized first world countries with countries that have either gone through drastic government changes recently, or decolonized countries. They simply exist in different scales.