CP Snow noted much the same thing in his Two Cultures book. Scientists seem to also believe that if you're intelligent, then obviously you'll become a scientist, just like them. The idea of a highly intelligent artist or carpenter or whatever just doesn't compute for them. To them, preferences and life choices are dictated by intelligence.
It's funny, because if you throw a similar syllogism to them about a different topic, they'll immediately spot the weakness of the logic and reject it. It's pure snobbery.