Was Martin Luther history's greatest monster?

Suppose we agree that the Roman Church was corrupt beyond all hope. The obvious thing would have been to exhort people to form a New Testament Church. Instead Luther resorted to a kind of apostasy which lacked the courage of its lack of conviction. If you are going to start a religion based on the propositions that religious rituals are all bullshit, no-one has any authority, average morons can decide for themselves and it doesn't matter what you do because it is all in your head, then that is pretty much game over right there. You had people like Calvin keeping things going by papering over the cracks, but in order to do that they had to add more layers of absurdity. Ultimately it just paved the way for libtardism, Talmudist and Satanism, when surely it didn't have to be that way.