The Irony

Did anyone else realize that soul society's biggest allies in the battle against Aizen, were people they had completely banished from soul society? People they passed harsh and vicious judgment on just because something bad happened and they had the crappy luck of being there? It strikes me as odd, personally. Hell, Kisuke was the main one banished and he and Ichigo, someone they don't even recognize as a full soul reaper, were the only reasons Aizen could be brought down... I think Soul Society is gunna run out of luck soon if they keep relying on their enemies to help em out.