Can someone in the field make a better widget than one who is not?

If it came down to inventing or improving a widget, would one who does that profession or uses that equipment do a better job at making useful or innovative improvements than someone who doesn’t work in that field? For instance (but not limited to), a house painter has better insight into improving on a ladder for painting houses than a cab driver or an accountant would? Someone who gardens or does landscaping would have better insight to inventing or improving a tool to remove weeds quickly and efficiently?