In this particular respect I do agree wholeheardedly with your assesment. Creationists have a very narrow positive role in that they in some ways cause scientists to reexamine the popular perspective on various items and work to correct them.
And in particular i think its particuarly interesting, because in some ways it flattens the elitism that is generally associated with science. And the really cool thing is that some inquiring minds, like myself, may get caught up in the science and want to find out more for themselves.