The Genius of the Itachi Reveal Is What It Does to Sasuke
Itachi killed his best friend/comrade to awaken the Mangekyō, massacred his own clan, and pushed Sasuke toward hatred by telling him to kill his best friend for power. From the very beginning, Sasuke’s character is defined by his struggle between following Itachi’s path or rejecting it, because to him Itachi represented the ultimate form of evil.
Despite his obsession with revenge, Sasuke repeatedly chose bonds over hatred. In the Land of Waves arc, he risked his life to save Naruto from Haku. During the Chūnin Exams, he was constantly willing to sacrifice himself to protect his comrades. When Itachi returned to the Leaf, Sasuke’s reaction was, “I won’t let him take my family again,” showing that his instinct was still to protect, not destroy.
After being mentally tortured by Itachi, Sasuke briefly considered following Itachi’s ideology and killing Naruto for power. Yet he stopped himself, saying, “I’ll gain power in my own way.” Even after leaving the village, Sasuke maintained a no kill policy, which directly contrasted with Itachi slaughtering the Uchiha clan. When confronting Orochimaru, Sasuke even compared him to Itachi, someone who pursued power at the cost of human lives, and expressed disgust toward that mentality.
That’s why the truth about Itachi completely shattered Sasuke’s worldview. The man Sasuke believed to be pure evil turned out to be a martyr who sacrificed everything for the village and peace. This revelation became the true beginning of Sasuke’s character development. At first, his hatred simply shifted toward Danzo, the elders, and the Leaf itself. But eventually, he began trying to understand why Itachi chose sacrifice over family, and why he accepted being hated for the sake of others.
Sasuke ultimately internalized Itachi’s self sacrificial ideology and tried to become a lone martyr himself someone who would carry the world’s hatred alone to create peace. In many ways, his final ideology was a darker reflection of Itachi’s life. Naruto’s role was to finally break Sasuke out of that cycle and show him that peace built on isolation and suffering is fundamentally flawed.
That’s why the Itachi twist is so important to Sasuke’s arc. If Itachi had truly been pure evil, Sasuke’s development after his death would likely have been far simpler and less layered. Sasuke would have just achieved revenge and either returned to the village or continued descending into darkness. The moral and ideological conflict that defines his character after Itachi’s death would not exist, because Sasuke’s entire worldview depends on the contradiction between the monster he hated and the martyr Itachi actually was.