Really it's impossible to say without a full review of your application, but perhaps your story (and post MBA vision) simply did not resonate with the committee somehow, or your reasons for needing the MBA now vs. later when you have a more firmly established career track were weak? Remember that Wharton, Stanford and Harvard get the most applications of anyone, so they have a huge pile of "top 3 ivey" grads with knockout GMAT scores--this is a very competitive pool and one in which you must rise to the top. You can't think about how you compare to the "average applicant," but rather how do you compare with someone coming from a similar background? Hope this helps you process. Sorry about the bad news, but with what I see on paper, I would not worry about getting into a top school. You appear to have a lot of the "right stuff" for sure and should find a slot or two going your way---I'd personally place a wager on it!