I take advantage of the racer wannabes. I get passed occasionally, usually when I'm riding into the wind (going slow makes me want to go slower, going fast makes we want to go faster). Anyway, they huff and puff to get ahead of me, and then slow down to however fast I was going (now that they've "won"!). I just stay behind them and use them as a nice windscreen, making my life easier.
They may have won, but I get the prize