The Illuminati, a secret organization, was meant to save the world, but its members have done some terrible things on their own.
The group, formed years before their existence was revealed in New Avengers #7 in 2005, initially consisted of Iron Man, Namor, Reed Richards, Doctor Strange, Charles Xavier, and Black Bolt.
Black Panther, who was also present at the start, refused to join, citing the egos of the members as the reason it would never work, a prediction that proved correct.
The Illuminati's actions led to the Secret Invasion and World War Hulk, and they almost destroyed Earth-1610, causing more harm than good.
Here are the worst things each member of the Illuminati has ever done, from manipulation and hurt to their allies, to almost destroying the world.
Black Panther was right, as the Illuminati caused the Secret Invasion and World War Hulk, and they almost destroyed Earth-1610.
Author's summary: Illuminati members' worst actions revealed.