Are MS Societies working for MSers?

In this article, Ashton Embry claims that "the national MS societies do not have the best interests of persons with MS as their highest priority": http://www.facebook.com/notes/direct-ms/why-national-ms-societies-are-not-acting-in-the-best-interests-of-persons-with-m/149801465049361.  I would like to think that Ashton is overstating the case against MS Societies, but recent actions of some higher-ups in the Canadian MS Society seem to bear out at least some of his assertions.