I really don't think it's a good idea to generalize so broadly, not all medical schools are full of students who exhibit such a lack of civility. Not all countries have the same application processes as North America.
Also I think it's a good thing med students are living life and not acting as model citizens, nothing worse than a doctor who's too perfect to really understand their students.
RE: Does medical school (in the U.S.) educate a bunch of angels, or is it just another shit show? (hint, it's a shit show)