Yep. The Yakuza are part of the society, in government they are lobbyists. They do good deed for their communities. If you visit Japan, my own experience are Hiroshima, Hyogo, Osaka, and Kyoto on vacation, and Tokyo on business, you will find the streets clean even in the worst parts slums of the city. The give aid to their communities when disasters hit. They pretty much police themselves on what crimes that can be committed.