I remember someone once said that Toney, although an ******* out of it, was never a particularly dirty fighter in the ring.
Now that you mention it, I've never though of him as a particularly dirty fighter while competing either. (His steroid use is another matter. Maybe 'roid rage is responsible for his sour temperament when he's not boxing.)
The opposite to this would be Carlos Monzon, a clean fighter in the ring and a good sportsman. Outside the ring he was one of the worst human beings imaginable
I got into boxing in the 80's and saw a replay of Monzon's last fight with Valdez. He was so in control in the ring I was surprised when I later learned of how bad he was outside of it.