Pistone had a made member from Florida vouched for him (most likely Dara), to the Colombo family after six months with that crew. They were greedy but a couple members of the crew gets pinched by the local cops, unrelated to Pistones work and for half a day he sits there with them while they check him out as a couple members accused him of being an informant, not a cop. There are always guys in their 40s and older that finally get involved with a family, but they already were criminals themselves or legit business men who now has a mobster as a silent partner for protection or any problems with the unions. It's not as uncommon as you think.