Was there a stink about him been light-fingered in the film , or did the critic's not notice it either ?
I can't imagine why there would be, unless you mean the critics would think the Beatles were a "bad influence". Given that they publicly stated they weren't trying to be any kind of influence (regarding smoking, etc.), I don't think the critics would have got very far.
George's character in the film is obsessed about money. When Ringo might be endangered because of the shop, he remarks, "Hey, there might be some insurance". Later, he doesn't want Ringo to give up the ring because it "might be worth a couple of bob," etc. He never pays for his round of drinks and cheats at cards. All in all, a fine example for teenagers.