It's bourgeois aristocracy, the same is true in Europe in a smaller scale: most corruption is done through connections and who-knows-who rather than a peasant cash bribe.
Just more layers to peel off from the same basic concept: greed. His description of how unacceptable it is when it looks transactional but how it is fine, and even expected, if it comes from the traditional ways of indirect corruption summarises it rather well.