Huh? You want to go to lower ranked schools than "top 5"? Or you are just asking about Wharton? Not sure why you are being so vague in your post. In general adcom hate it when people ask for more money because so-and-so school (typically inferior) gave them $$$. Sometimes you'll luck out and they really want you, so they'll give you some love. But you should do it in the most tactful way as possible and not make it a money grab request. Also, if money is a legitimate concern and Wharton is your top choice, let them know that.