I intentionally put "gang" in quotations. I was in no way trying to equate criminals with church choir groups or any assembly of decent people. But I did want to make the point that everyone has their own unique perspective on things and that the trio in the photo might feel that they have good reason to flout the laws. The laws are often not fairly enforced and are often used as a tool of oppression and extortion. In such an environment, it can be difficult to differentiate between good guys and bad guys.