Computing explains the technological world around us. The same reason it's very beneficial for society to have a solid understanding of basic science (and that doesn't mean being scientists), today society should expand its horizons and have a basic understanding of computing (without being software engineers).

I don't need to be a mechanic in order to fix my car was used a few decades ago. Today, cars may very well be black boxes, but if society had a basic understanding of computing, perhaps they'd advocate for more open car technology. It's beneficial for everybody.