Intensity: Good if You're Pale; Bad if you're not

Yesterday was the 26th anniversary of the "Pine Tar" game. I'm sure we've all seen the replay of George Brett going batshit insane hundreds of times. My question is this: Why is Brett's charging out of the dugout with murder in his eyes, his anger so manifest that he has to be physically restrained and pulled away from the umpire, viewed as evidence of his virtue while Milton Bradley having to be physically restrained and pulled away from an umpire who not only blew a call but then baited him viewed as evidence of his insanity and lack of virtue?