Sasuke is also very easily influenced and right now he might be sympathetic to hear from Madara how his brother was taken by the corrupt shinobi system in Konoha. Last time Sasuke fought for real we saw him murderize Danzo and then almost kill A until Ay called his lackeys in (like a typical black man) and had Gaara end the fight early.
With EMS Sasuke can murderstomp Hashirama easily. Sasuke briefly considered Itachi's words, and has merely decided to not let this world end. He in no way said he forgives the village or Naruto. He's just not going to let Obito run off to pretend fairy land and enslave him and the rest of the human race because he's buttmad that some girl died.
Reality is Obito's a little *****, Sasuke is the real Uchiha.