I've worked with brilliant and rational-when-it-comes-to-work researchers who happen to be sincerely religious. I'd be more concerned with a scientist who happ

I've worked with brilliant and rational-when-it-comes-to-work researchers who happen to be sincerely religious. I'd be more concerned with a scientist who happens to be convinced that he is destined to make great discoveries. (which, delusional or not, may inspire them to feats greater than otherwise). My concern would be for their intellectual honesty - the same concern caused by any strong religious or other ideological precommitment relevant to their work.