Obito's actions and choices are understandable. Even though they were wrong you can't completely blame him. Obito is Naruto, except Naruto had the will to never give in. Plus, Uchiha have the Curse of Hatred
Such a dramatically beautiful picture of Tobi.People keep on telling me to call him Obito, but I had already guessed who he was when I first saw him. So if he is wearing the mask, he is Tobi. End of discussion.