thats because the majority of the stars had complete and total control of their characters and the big three nwo guys really had control to book their own outcomes and stories.
Plus having damn near having ever body joining the N.W.O. Sting was the perfect protagonist against the N.W.O. having everyone believe he was with them and the WCW boys turn their backs against him and ending up turning into the crow Sting going out for his own and thennnnnnnnnnnnnnnnnnnnnn the shitty booking come in by Bischoff by having Sting look horrible in the match against Hogan at Starrcade. Then down the line Sting ends up joining n.W.o in some sort of capacity.