Female vs. Male Med students

I just read an article about comparing female versus male medical students and how they estimate their skill level.

http://www.sciencedaily.com/releases/2008/10/081003122713.htm

Basically the gist of it is that female medical students have the skills but are not as confident as their male counterparts. I am not sure if this is a good thing or not. On one hand it seems like female med students might be more humble and therefore less likely to overestimate their skills and make mistakes. On the otherhand sometimes you have to be a bit cocky to convince other people they can trust you. There is a good episode of Scrubs where the surgeon Turk stops being cocky and says he is a capable average surgeon, which causes the patient to rethink the decision to have surgery. When he returns to his confident attitude the guy agrees to have the surgery.

I am sure there is a happy medium in there somewhere.