The ad went on to say that superior and inferior people alike ate such and such brand of peanut butter. Except that it wasn’t really peanut butter on that planet. It was Shazzbutter
(put on your sneakmers because this sentence is about to run, and you've gotta chase it!)
i'm making a (not my own) case that america is the main representative for the earth due to the fact that a peanutbutter prototype is the quintessential food in the advertising scheme of a non-existent planet in a non-existent book in a fictional novel by kurt vonnegut.