Chiropractic And Resistance To Evidence

This blogger has posted on more than one occassion regarding the lack of evidence for the concept of the chiropractic subluxation.  Jann Bellamy has posted on the Science-Based Medicine blog evidence that chiropractic education continues to promote this bogus concept and how it is continuing to be promoted for various medical problems.  How is this different than Christian apologetics, where erroneous statements have been shown to be wrong by science but they continue to be spewed out by the apologists?  Either delusion or money seem to be the reason in both cases.