In part. Ego is the big problem. Young scientists, at least the non-stupid ones, tend to be hyper-curious, open-minded. But as they become established, particularly in academia, surrounded by worshipful students & younger researchers, most become way too invested in their "stories", and it seems to be increasingly hard for them to view new hypotheses in an open-minded way. Impossible if the new ideas contradict their own. Geological sciences have never gotten the big government bucks medicine and epidemiology do. I would imagine the money-power thing is an enormous additional barrier to intellectual objectivity in those fields.