This is a bit of dialogue, but it works as a saying. Given the previous post, I found this rather apt. Although this was written around one hundred years ago, it still applies. This explains, among other things, why advertising in this country is so poor.
“Do you imply that we Germans are stupid, Uncle Ernst?”
“To my mind. You use the intellect, but you no longer care about it. That I call
stupidity. You care only about the things that you can use, and therefore
arrange them in the following order: money, supremely useful; intellect
somewhat useful; imagination, no use at all.”
E.M.Forster, Howard’s End