That leaves aside the question, why not just give Carlo a place among Vito's legitimate interests? Someone has to sell the olive oil. It seemed odd to me that he should be isolated from the family business, but then turned into a bookmaker.
That's a fair point, MP. Even a lowly family bookmaker is still part of a bigger criminal conspiracy, so why even give him that if you don't trust him?
He could have given Carlo a legitimate sales route in the olive oil business. Like you said,
somebody had to go from store to store and restaurant to restaurant to take the orders.