You sound like someone who thinks that there is no possible knowledge outside of science, narrowly defined. This is called "scientism," and it has been responsible for a great deal of bad in our civilization. Such people tend to be barbarians in white coats. They reduce human knowledge to a very narrow little sphere. No thank you.
Most scientists have a lot of knowledge in other areas. However, IDer types just think they know something. They don't really know that much about science.
What is truly deceptive is that Behe, being a chemist probably knows that IC is hogswallop. He just saw a way to make some money from some rubes.