The GPA-MCAT grid shows you have a ~50% chance of a MD admission with your current stats. If you were to increase you cGPA to 3.4 with another year of undergraduate classes your chances would increase to ~75%.
That doesn’t answer my question. Tutoring kids in hospitals has nothing to do with building houses or tutoring kids in Afghanistan (unless the kids were patients in Afghanistan hospitals). But even then it doesn’t explain the building houses.