As for the article, I think the LA practitioners hostility toward the vet. schools is misplaced. The reason they can't hire associates is because they aren't offering a high enough salary -- that's not TAMU's fault. It's the economics of LA practice.
Giving admission preference to male students from a rural background is unlikely to change this much. For example, a recent study in Australian Veterinary Journal (July 2007;85(7):296-9.) followed veterinarians for 15 years after graduating. They found that veterinarians who had grown up on farms were slightly more likely than those from other backgrounds to continue working in mixed practice, although the numbers were small and the differences not significant. Whatever their background, the majority who started their careers in mixed practice left over the next few years, and by 15 years only 15% remained.