http://wasdarwinwrong.com/korthof97.htm
I would guess it is wrong; we are on a track where genetic manipulation to treat blatant defects will (relatively shortly) be cheaper than the traditional medical treatments.
Parents could choose to have children created from their healthiest genes, rather than leaving children to be shotgunned with a random and increasing fraction of damaged genes. Genetic repair would replace the ancient cruelty of natural selection, which only fights entropy by tormenting organisms because of their genes.
The concern espoused above is that we won't be able to fix the problem.
Now that's a limited view of the process that created life. Natural evolution also pays back by upgrading the gene pool.