I've been around academic medical centers for 40 years and I have seen two things: physicians coming out of the Ivies and similar high powered schools (Stanford, Hopkins) and those coming out of inexpensive state med schools and going into residencies at T20s. The combination of low debt and top training positions one well to take an academic job rather than needing to chase the big bucks in private practice (or these days, working for "the man" in a non-academic clinical setting).