["[John] Street's problem was that, unlike the white-shoe lawyers and sleek inside players who'd mastered this game, his people were new the the trough."
Chris Satullo; Not a Crook, But Still a Failure; Philadelphia Inquirer(Pennsylvania); Jan 5, 2008.]

Yes that's quite ironic. White shoes show dirt more easy. Specially when the one who wears them gets too close to the through.