Why are people complaining about Mayweather not going for the KO. I've seen at least 2-3 fights already where Ali is dominating his opponent, but is happy to stay on the outside and beat his opponent from afar without trying to close the show. Leonard did this as well in his fights when he couldn't hurt his opponents (Duran 2). Even Robinson when he went up to light heavyweight, and some of his fights against Lamotta he didn't attempt to KO his opponent, but rather work the jab.

Why do guys like Roy and Floyd get penalyzed by fans for winning when the greatest fighters of old have all at one point or another done the exact same thing in one fight or another. Is not dominating a world class opponent enough?