The Illuminati required a living messiah because their prophecies dictated that the rapture was imminent, thus signaling the end of humanity. Their messiah would be the one who would bring salvation and create a new Eden for the worthy remainder of mankind. The Illuminati's prophecy for the events that signify the end of the world, which will take place in 2200 AD. The "boy who controls the elements" refers to Gill, and the prophecy predicts that he will act as humanity's savior. Gill, however, planned to create this utopia ahead of the prophesized date, deeming himself powerful enough to do so. According to Illuminati legend, the soul of the previous Illuminati Emperor would be reincarnated into a new body after death; the organization determined, through the results of their special training program, that the latest incarnation of the Emperor was Gill. Therefore, at the age of 22, Gill was appointed President of the Illuminati. Urien was overlooked due to his emotional instability, and appointed vice president under Gill.
Later, Urien challenged Gill for the presidency of the Illuminati and succeeded. Urien then became the president of the Illuminati. However, Gill was not demoted. In fact, he was promoted out of the title of president and became the new Emperor and messiah.
Under Gill, the Illuminati continued to gain power and resources, acquiring capital and estates through various business transactions. When the organization came into possession of a certain Jaguar automobile from the father of a British heavyweight boxing champion known as Dudley, Gill himself was challenged by the pugilist in order to have the automotive heirloom returned. Gill, being respectful of powerful fighting ability, agreed to return the precious car, as its worth was insignificant compared to the coffers of his organization.
The Illuminati continued to conduct genetic enhancements and other intrusive mutations on humans, either kidnapping their subjects or creating them artificially, in a development series known as the G-Project. These experiments resulted in the creation of the super soldiers known as Necro and Twelve, enhanced beings designed to carry out the bidding of the Illuminati.
With the aid of his faithful secretary Kolin and despite his younger brother's meddling, Gill organized the third World Warrior tournament with the aim of finding those strong enough to be worthy of repopulating humanity after the end of the world.