Sigh... there is too much here for me to review.
But given a case of a really strong applicant (3.9+, 39+), it is VERY possible that they bombed interviews by lack of social skills. A premed robot with zero ECs can achieve these stats, but they probably won't get any acceptances. Stats give you an opportunity to get into a class, but by NO MEANS give you a guaranteed spot. It is up to you to sell yourself positively at the interview process, which the OP seems to have done exceedingly well.
There is so much more to this process than stats. In the case of the member mentioned above, I have to note that he is quite young - 18 if I remember correctly - which would place him under the 1 percentile for matriculants. That introduces a very important point on adcoms - to some degree, they strive to put together a class that coheres well. Being so young can be inimical to this goal, as discussed ad nauseum in other threads.
My point? The OP is definitely an outlier - his ECs and personal skills appear to have separated himself from the rest of the crowd. It's a great story, and we shouldn't take away from it. Yes, it's possible he's lying. But there is no guarantee that anyone else on SDN is any more genuine than him (i.e. drizzt might not be a medical student at all, or
LizzyM might not even be an adcom member) - the anonymity of these forums assures this fact.
Stats are an important part of applicantions, but are by no means the only factor involved in admissions. We all want to be doctors, shouldn't we celebrate the accomplishments of our peers, and encourage others to reach their goals? The OP's thoughts of whether some of you would root against the Karate Kid, Rocky, and Average Joe's Gym apply here - "underdog" stories like these by no means are the norm, but it's awesome when they are successful.