Heh. You say about traditional med school applicants that "every single one is identical" and you say that I'm stereotyping?
"Nontraditional applicant" does not mean old. A 22 year old philosophy major that spent a year studying in rural Brazil is a nontrad, for example. Nontraditional just means that the student didn't do what every one else does, which is major in a biological science, do 150 hours of volunteering in the ER, 100 hours at a nonhealth nonprof, a semester of TAing and a semester of research.
I don't agree with you that "All have virtually the same volunteer activities, the same leadership opportunities, blah, blah, blah". Many do. Most premeds are lemmings by nature. There's so much fear about not having what the other guy has that many folks structure their applications in exactly the same way as that next guy.
There's no reson for your application to look like the next guy's. If you don't stand out, don't blame "the system." It's on your shoulders.