Fachidiot, a beautiful German word, is "an expert in a certain field who is ignorant of other fields, or only looks at problems through the lens of their own field."
We must always remind ourselves that there are other viewpoints, other domains, and different ways to see and understand—no matter how good we are at our work.
Seeing differently does not necessarily mean wrongly. A little bit of humbleness and open mindedness surely helps with the Dunning-Kruger effect.
It has never been easier to learn and experience new things. So, why squander that opportunity?