Slightly off topic, but that mindset, ignoring expertise in field that could help in another, is still quite common in Germany if you ask me.

And yes, the military intelligence of the Germans sucked in WW2. Didn't help neither that the culture, military and political, was highly idiological. When truth cannot be spoken and power won't listen facts are ignored. It cannot be what's not allowed to be. And then reality bites your ass ultimately.