Economists rarely have a good solution to societal problems. They have good solutions for facilitating trade but offer nothing with respect to social norms, nationalistic sentiment, etc.

We all agree that economists are good at maximizing resource allocation. Sysops are good at maximizing hardware allocation but we should let them dictate national policy :)

Politics is about taking all of the science and all of the human components of administrating a country and merge them into an ideal outcome. Economics is just one part of a bigger picture.