that itachi life was somewhat the same as the main guy in codes geass(they trun evil to protect what was important to them like for itachi it was his brother and for the codes geass main guy it was his sister and they both die as an evil persons and itachi died by his brother, and the guy in codes geass by his best friend(his best friend only knew the truth but at the end his sister found out the truth) and then sasuke found the truth too. most importantly they both had strong eye power and to their own world they died as evil and only few people knew the truth