Board Thread:Theories and Speculation/@comment-26422040-20150725154528/@comment-26518343-20150804135918

Outside of Naruto perhaps, you can't really apply the concept of good and bad/evil to the series. At least not in the traditional sense. Take Gaara, Danzo, Itachi, Obito and Pain for instance.

Just because Orochimaru and his cronies are perceived as "bad guys", it doesn't make them inclined to work for/with other "bad guys" such as Madara or other Akatsuki.