What about the time that he doesn't "not hurt anyone"? What if he hit you, or your daughter, or son, or wife, or mother, or father, or one of your good friends?
It's not worth putting everyone else at risk.
That's like saying that it's ok for a mobster to shoot and kill someone during his free time because he's a pro at it and does it for a living... He's an expert...
Do they let NASCAR drivers drive any speed that they want because they do it all day on their "day job"? They're experts. No, they are only allowed to drive that fast on the track. They have to follow the same speed limits that we do...