The difference is US or Western countries are already mature. I am sure different types of corruption existed there in 19th century when the country was still e

The difference is US or Western countries are already mature. I am sure different types of corruption existed there in 19th century when the country was still expanding. Off course culture of people matter but systemic rot arises when existing people work in what essentially is sometimes a negative sum game. Fights between heterogeneous groups over limited resources exist and far too often much powerful foreign powers do interfere to make the best of the situation for themselves.