T.O. never helped anyone win a Super Bowl Championship. He did play well in that game and he is a good receiver, no doubt about that. Still wouldn't want his antics affecting the Saints locker room. A team wins Super Bowls every year and guess what...none of them needed Moss or T.O. to do it.
Irvin, while he's not gonna win any person of the year awards, was a good teammate, who cared about winning and played like it. Yes, he had some off the field issues, but nothing like the cancer in the locker room that T.O. and Moss are. These two players' antics have direct negative impacts on their respective teams.
I feel confident that Payton wants no part of Moss. And it would seem that you agree with that point.
But I guess we'll see.