They Sued Disney—And Won
In 2007, HAMC filed a lawsuit against Walt Disney for their attempt to reference the club in Wild Hogs. Disney agreed to settle this problem out of court (a wise decision) and they agreed to remove the reference to the Angels from their film. A similar issue happened with the design house Alexander McQueen, Zappos, and Saks Fifth Avenue.
Justified Violence
In the eyes of the Hells Angels, violence is always justified. There is a document by the American Motorcycle Association that is supposed to dictate the behavior of motorcycle gang members, but the Hells Angels kind of play by their own rules.