Star- to respond to your question, your reasons for wanting to go to med school are definetely good for an interview. My only advice would be that right now they seem a little to scripted (the "born leader" thing esp. could be risky) Loosen them up, make them a little more fun, a little more personal and you'll do fine
My reasons for medicine are similar to a lot of what I'm hearing. I feel it is very important to give back to the world, god, whatever you may want to call it, what you have received. And for my part, I feel that I have received a lot (cool parents, good friends, ability to go to great schools, chances to travel, etc.) So I feel my contribution should be proportionally large.
Admittedly there are a lot of ways I could give back, but very few combine the subjects I love- science, technology- with so human a touch, and the chance to give direction, lead, make changes, on a daily basis.
I was a psych major in college and I am really touched by the fact that when one deals with a patient, you deal with it all, their physiology, their anatomy, their pathology, their psyche...
all of this and the fact that it really does "just feel right" sometimes