That's really scary. I just hope any nurse sticking a needle into me, or doctor about to perform surgery, actually passed his or her own exams and didn't copy from a friend.
The integrity vs loyalty question is a good one. My biased answer is 'integrity'. However, I do have a better understanding of the 'helping' mindset. Like A-train, I thought it was a euphemism, but it really is ingrained in the culture.