With regard to the previous post, indefatigable commenter NDM has this to say:
John Galt's The Member and The Radical, available in a handy combined edition from Canongate, are also interesting on this topic.
Talking of Galt, I was once driving along one of America's more
boring interstates when I saw a bumper sticker with "Ask me, who is
John Galt?" I'm thinking why does this car have a bumper sticker about
a long-dead and not overly fashionable Scottish novelist. At that time
I didn't know about the ever-fashionable Ayn Rand cult.
Readers are invited to supply further examples of bumper-sticker confusion.