Just a small point. I do not believe scientists are particularly rational people as compared to the normal human. Because the average scientist has a higher IQ than the average artist I am willing to grant marginally higher rationality to an average scientist. Their ability to decompose and abstract any given conceptual system is greater. That being said, the contrast between the disciplines of art and science are far greater than those of individual artists and scientists. Why?
Because at the end of the day science does not rely on the rationality of a scientist. It relies on the cumulative and self-correcting rationality of the scientific community. It is the “wisdom of the crowds” at its apotheosis. Additionally, the domain which science addresses is generally skewed toward those which are amenable to abstraction and decomposition. I do not believe that physics is such an awe inspiring science in comparison to biology simply because physicists are more intelligent. They are more intelligent, on average, but that in an of itself does not explain the ability of physics to predict at such a fine grained level. Rather, it is the subject matter of physics which is the variable that makes it so.
I bring this up because many scientists believe that because science is such a superior method of extracting information about the world around us, and constructing predictive models which have been shown to have great utility, that that means that they as scientists can simply transfer their godlike powers to other domains with the greatest of ease. But as the above should make clear I believe this is a false perception, because the power of science arises from the intersection of the communal wisdom of tens of thousands of individuals over decades with the nature of the subject at hand. Granted, there are individual geniuses of great brilliance such as the great Isaac Newton, but the outcomes of his dabbling in alchemy and scriptural hermeneutics should go to illustrate that cognition applied to a fool’s errand only results in glorious foolery.
More modestly, this of course applies to the problems that evolutionary biologists have with experts from other scientific disciplines, especially engineers. Engineering is a magnificent profession which serves as one of the bases of our civilization. It is constructed upon tried & true science of the first caliber. Standing upon the shoulders of the geniuses of the past some engineers with little knowledge outside of their domain, great sincerity, and ideological convictions of extra-rational origin, confuse their facility with the tools of their trade with a general ability to conquer any systematic body of knowledge. But of course the power of engineering is due to the centuries of accumulated wisdom on the part of scientists and engineers, not the acuity of any given individual.