Corruption refers to the act of a state official taking advantage of his position to solicit other people's property or illegally collecting other people's financial affairs for the benefit of others.
 Yang is the deputy head of a certain county and is in charge of foreign trade. Yang is naturally greedy and believes that everyone below should pay tribute to him. However, he is afraid that his hands will be dirty, so he instructs his wife to trade foreign trade within the county's jurisdiction.