I don't know what you'd call something structured like this, but I really love that advice: "You can't change the people around you - But you can change the people around you."
What is the difference between a Straussian meme and a double entendre?
Whereas in the example here, acting on that advice is costly (it means losing friends) but believing it is free. And there aren't different layers of meaning accessible to different parties. It's straightforwardly a play on words.