>I work in a profession (due diligence) where asking the simple questions (e.g. why do your GPUs need fans) is far more important than the complex ones

I find the same to be true in engineering. Often simple questions sound stupid, but they lead to improved communication. Because more often than not everybody thinks they're on the same page. Especially experts on some topics tend to this kind of thinking. However a lot of the things they think "everybody knows" are not known by others. Simple questions bring this to light.