When someone is illuminated it means they know the truth. It does not mean they are evil, knowing the truth does not make someone evil. What the person chooses to do with their knowledge could though be seen as either good or evil.
Long before Adam Weishaup there were - The Alumbrados (Illuminated) which was a term used to describe practitioners of a mystical form of Gnosticism in Spain during the 15th-16th centuries. The Alumbrados held views that were clearly heretical. Consequently, they were firmly repressed and became some of the early victims of the Spanish Inquisition.
However where did they get their Gnostic teachings from? The Serpent Bloodline Mystery Schools of course. The Alumbrados were those who had tried to infiltrate Christianity and the Jesuits to bring the true teachings of the Serpent Bloodline. But when they were found out they were burnt at the stake. Sound familiar? Yes, it also happened to the Cathars in France and the 'true' Templars, who were Gnostics NOT Christians.
So quit throwing the word 'Illuminati' around like you know what it means, when you clearly don't.