Majin is a huge distortion, but not the only one.
Though, Odin is
Though, Fiamma didn't complete the Aeonic Shift. Touma had beaten the crap out of him before that can happen. The distortion was fixed by the Star of Bethlehem, but that is really about the only thing Fiamma had accomplished. If Fiamma had succeeded, the world would have reverted back to the rule of the Christian God.
....The more I read into this that more I feel bad about Fiamma. He is actually the one who is making the proper use of the power of the right. Touma felt even more incompetent by comparison.