The Mafia's Ten Commandments

The Mafia's Ten Commandments makes a lot of sense to economist. See a brief Fox News segment on it here. I would guess that my friends who do the economics of religion who be able to explain some of these reasons. Here are some of them:

No one can present himself directly to another of our friends. There must be a third person to do it. (Essentially always having someone vouch for the person being introduced.)
Never look at the wives of friend
Never be seen with cops.
Don't go to pubs or clubs.
Wives must be treated with respect. (I suspect is that they know a lot and you don't want them going to the police.)
You must be available at all times to the Mafia.