Is it necessary for all physicians to peer through this window in order to practice quality medicine? Perhaps not. But does it give us an appreciation, and humility for, the astounding complexity of biologic systems that underpin all clinical interventions? Ideally so. At some point during pre medical training there should be - to be blunt - a filter that separates adaptable and bright students from those who hazily wish to pursue medicine but do not have the capacity to do so at a high level.
There are many career paths for those who can not adapt and learn at the high level which has been traditionally been required to complete medical school. We can, as a society, either lower the standards or maintain that high level of requirement that has been the badge of "MD." My bias of course, having completed 13 years of education after high school, is to recommend that we do not lower the standards of the MD process. The system, as it has evolved to date, has plenty of opportunity for those who desire less rigorous training, for example nurse practitioner and physician assistant tracks. There is still a place in this world for highly trained and motivated individuals who wish to be the best in their field. Signed, a professional who benefited from the strong institutions that create medical doctorates.