First of all: "Illiminati" are not bad or satanic or whatever.
They are the Builders of the Ideal Society.
And they are building the Totalitarian Socialist World State because they think that the people of the world do not deserve freedom.
And they are right for the majority of the world population are uneducated and need big brother to watch for them.
But... there are educated men among the people of the world. The 3%. Narrow is the way...
What part of a totalitarian socialist society screams good to you? I don't really enjoy when another person claims to be my supreme overlord.
I've contemplated this myself, I see how they are an enlightened group of beings, but I cannot completely see how they have good intentions for earth. If they really wanted to build the ideal society, they would share all of their ancient knowledge and peacefully remove this fear/greed based society for a love based society. Which means stop perpetuating wars, stop perpetuating monetary based society, and stop perpetuating inequality and elitism.
We could quite literally turn this world of hell into heaven on earth, without revolution, if we just grew up as a race.
But as it stands, I don't see them doing this. I don't see them wanting this.
Nazism was a political ideology, but devil worshipping is just another religion. Why call some good and some bad?
Point is, Illuminati were anti-religious atheists, so they wouldn't have been devil worshipers either, just as Nazis were extremely nationalistic, so they wouldn't be for the idea of taking down the government they so adamantly supported.
Atheism is practically 'devil' worshiping. (Yeah, I know I'm gonna set someone off with this one). But look at it from this perspective: the devil is ego, god is soul. Ego is material, soul is energy. Illuminati built an empire the revolves around materialistic ideology and science, study of the physical, measurable universe. A society that is based off fear, greed and hatred. And look where it's leading us; complete annihilation of our planet. Less we change our path, which we can do, are doing and with faith, will do.
And to be honest, I don't buy that the head of illuminati are atheist at all, for if they are truly illuminated they will believe in god. My limited experience talking to freemasonry descendants reasserts this point, them calling me the oracle and all.
I can definitely see them pushing atheism onto the masses though. Why would they want to give a population they wish to enslave hope? Why would they want them to become fearless of death? Fear is what drives their power and fear, or negativity, is the basis of atheism (I don't think there's a god, I don't think that's possible, etc.)