So you're basing your life on some paper sheet with a grade written on it and not the doctor's experience and personality and professionalism? You sure are not a medical student nor a doctor. Getting grades is very doable but leaning the practical skill is the hard part. 80% of what you learn in med school especially on books is not used on a doctor's daily work life. It is the hands on skill majorly in what you learn in med school that is used during your housmanship and clinical and so on. So passion IS very important as well as academics and practical skills as well. I would trust a doctor based on their experience and personality but never merely on the slip of paper which they sat for 10 years ago. Grades you can always achieve better but practical skill and personality is what defines a doctor