> not all these people are idiots. Some of them are quite intelligent
You can be very intelligent in one domain and be a complete idiot in every other domain. The result ends up being unless we're talking about that one domain, they're an idiot.
I would refer to that as knowledgeable and ignorant rather than intelligent and idiotic. It doesn't really make sense to say that Gary Kasparov is an idiot regarding the construction of log cabins. Rather, he is an intelligent person who is ignorant of the construction of log cabins.
You can be very intelligent in one domain and be a complete idiot in every other domain. The result ends up being unless we're talking about that one domain, they're an idiot.