I think it's hypocritical to complain that ordinary Italians are smeared by organized crime, and then to voluntarily appear on (and presumably try to get some benefit from) a show that deals with Italians involved in organized crime.
Not many actors can afford to pass up a role that will define their career or, at least, put them in a comfortable financial position.
Most of us, to an extent, prostitute ourselves at times regarding our careers. To laugh at someone for doing so is worse than the act of prostitution.