Maybe Nissan did understand that, which is how we ended up with the Leaf. You spend $32K on a car that's saving polar bears, you want the world to know it. How am I supposed to feel smug if I'm driving something that looks like a Nissan Versa?
Contrast that to the Tesla Model S, which IMO is kind of bland (though I'd still buy one if we didn't have the Leaf). A buddy of mine recently said he hadn't seen a Tesla. In Redmond, WA? I guarantee that he saw at least one or two on his way to work at Microsoft that morning. But if one isn't in to cars much, a Model S isn't really going to stand out.