Well, faust... From what I've read and heard, he does seem like nothing but a greedy business man while Miuccia appears to be more conservative when it comes to the company. It's her family business, and she seems reluctant to go public with it...
Like she said in an interview, it could be hard to justify the beautiful stores, or the Fondazione Prada which only costs and isn't generating any money, once they go public.
I would bet she wouldn't try to maximise profits by moving production to China...