All.
Even people are corrupt. If anyone is not corrupt it's only because he/she did not get a chance (not copying Anupam Kher, it's reality).

I know a guy who barely passed SLC. People started a Sahakari and he was chosen as manager by local thute netas. He has more than 3 crore personal assests now within few years. He came from pretty poor family background. He's a representative character of Nepali society.