There is more to the process than MCAT+GPA. Sure, the better your scores the better your chances at getting the interview. Once you get invited to the interview, the its all about you.
Like futrfysician, I know peeps that did great on MCAT yet never got offered interviews. I also know peeps that are physicians now that got a 16 on their MCAT.
Personally, I consider myself an "average" candidate when it comes to MCAT/GPA... yet I was accepted at every school I applied to... in retrospect, I think my interview was my best 'feature.'
Bottom line is that it is all up to you... If you want to get into medical school, you will. Don't take 'no' for an answer. Go watch "Rudy."
Hope I helped!
-A