The good news is there is a cure. You can wiggle your feet and toes and go barefoot and your feet will get stronger. In "Born to Run" by Chris McDougall he talks about all of this so I'm trying to spread the news. One example he gives is a high school runner who had size 12 feet and began incorporating feet strengthening exercises and barefooting into his routine and his arch went up and he turned into a size 9.5 to 10. That high school runner was Alan Webb, who now runs a 3:46 mile.
Other news from his book: only 3% of the population actually have biomechanical problems.