I don't think Gucci should wholesale anymore either.Gucci available from third parties have to sign the most stringent contracts and have their a***s off if they err, as many retailers have found to there horror.
I don't think Gucci should wholesale at all.
Brands technically can't set prices for other retailers, at least according to Canadian law, but at the same time, they can claim that certain activities can damage a brand and then end an exclusive partnership.
I know Chanel controls its wholesale cosmetics and fragrance prices very well using this method. They withdraw their products if they find out a retailer is marking down its products.