Since medical schools receive so many applications, they have to play the numbers game, and if your GPA-MCAT score doesn't make the cutoff, you lose. But, if you get an interview chances are you are on a level playing field with the other applicants. I think my GPA is really hurting me. This will show the admissions committee that you are serious about your work and applying to medical school. I have great grades, fantastic MCAT scores, but I still can't get into medical school.
Medical schools look for very specific qualities in the applicants.
Being a good doctor isn't all about being a 4.0 student. In fact, during one of my evaluations this year I was told by a very senior doctor that 4.0 students usually make pretty lousy doctors. If you are a science type, develop an interest in one of the humanities. Medical schools are looking for well rounded people. Please note that I don't wish to imply that excellent grades will hurt you, just that you need to look beyond the numbers.