I knew I'd get a unhelpful, dogmatic answer like that. I need SILENT soles. No squeaks, no heel clicks, nothing. I own multiple pairs of leather sole dress shoes already, and they make tons of noise. Most hard rubber soles on dress shoes squeak. I don't care what they look like up close, just as long as they pass for dress shoes from 50+ feet.
Edit: Somehow stumbled across an answer to my own question. Red Wing 101/9196. 9196 is exactly what I was thinking of (black calf chukkas).