As far as we know, Izuna was the vessel so Madara can regain his eyesight. Anyways, your theory could also be possible. Madara may not be THAT evil after all and he is just using evil means to get a good end, to reunite with his brother.
It could also be true that Madara does not care about his brother after all.
Are we reading the same Manga? Madara doesn't care about peace, he only wants to become the ruler of the shinobi world. That's why he got butthurt when he wasn't elected as Hokage
Are we reading the same Manga? Madara doesn't care about peace, he only wants to become the ruler of the shinobi world. That's why he got butthurt when he wasn't elected as Hokage