Capo and Pizzaboy, how many times to I have to get this through everyone's head, the Mafia was loyal for hundreds of years, then certain people within it started to get greedy and ended up ratting, but disloyalty did not appear much within the Mafia until the 1970's. Everyone on this forum is acting like the Mafia had no loyalty and respect when in fact it did for a very long time.
But The Sopranos isn't set before the 1970's so there would be Disloyalty in the Mafia then.