I get your point. Anyone too inflexible of thought, too dogmatic of belief, too narrow-minded, too insecure to have their views challenged and too arrogant or scared to be wrong is dangerous and difficult, and pitiable. Humans are more irrational than rational, it is quite literally how our brains work. The same area of the brain that signals DANGER lights up when our identity or views are attacked. Robots would never have such problems.
But a purely logical and unemotional society would be harsh, boring and probably wouldn't have made it as far. Certainly this wonderful series wouldn't have been written, for if Jim was purely logical in his attitude to writing he never would have believed he could write a 20 book series (as he puts it).
It's all about balance.