Ya know what? You're right. Sasuke is, in your biased opninion, "selfless" even though that's not true and that everything he's doing is so that he can feel better about his treacherous clan. That also excuses Sasuke's crimes such as murdering a Hokage candidate, infiltrating the Gokage Summit, murdering several Samurai, attempting to murder ever current Kage, joining Akatsuki and working with Obito, another insane Uchiha, attacking Kumogakure, attempting to capture Kumo's Jinchuriki and the Raikage's brother,and resurrecting Orochimaru, an infamous madman hell-bent on world domination.
Oh wait... It doesn't. Sasuke is still insane and still selfish.