Any player, no matter how big a distraction will have a spot on an NFL roster if their talent makes it easier to deal with.
TO was a huge distraction everywhere he went, production warrented he was worth it. When Mike Vick came back to the NFL HUGE distraction. Again, talent warrented the roster spot.
IMO, based on talent and talent alone CK should be on an NFL roster if guys like Geno are employed. However his talent level and where he would fall on most teams depth chartsmake the distractio not worth it. Its much like the "Crazy/Hot" scale when ot comes to dating.