I personally think these small incremental changes are what's best for society as a whole. Kudos to Dr. Bruce Martin. It's not easy going against your peers.
And to people who are worried about their children's prospects... I wouldn't be too worried. 1) The changes are incremental 2) You still need good credentials to get into med school (so advantages in socioeconomic status, money, resources are still important).
Bottom line that I think is: they're not going to reject a kid who has a solid GPA, MCAT, and ECs just because they're "white males who have money". If they'll make a good doctor, and they've got what it takes, then they'll probably get in.