Medical schools, these days, are up to around 50% diligent, perfect-student, rule-abiding boring females. Tons of Asians, too. Doctors are no longer mainly the smart Jewish guys and the patrician WASPy guys of the past.
The Association of American Medical Schools wants to change the tests for more diversity. As such things tend to be, I'd guess they want more black and Mexican kids and more gays, and fewer grade-grubbing Asians and white girls.
If I recall, it was a while ago that they changed their tests: they eliminated the "General Information" part of the MCAT, which dealt with history, literature, psychology, culture, etc. That change must have altered the general make-up of medical school classes too: more science nerds and fewer of the potentially-wise priestly class.
But maybe that's what people want from docs these days: expert technicians. It's not for me. I want expertise, but with a heart and soul and some wisdom and flexibility.
It will be airline pilots, next in line, for all of this.