The Illuminati structure is one of pyramids within bigger pyramids within still bigger pyramids until you reach the one that encompasses all the others. It is like Russian dolls, one inside the other.
Look at any organisation today, a bank, business, university, government, whatever, and you will see that it is structured as a compartmentalised pyramid. The person who sits behind the counter in a bank will not know what their branch manager is deciding or planning, and the manager, in turn, will not know what is happening at regional level, and they will not know what is being planned at national level, and on it goes.
The only people who know the true plans and agenda of that bank are the handful at the top of the pyramid who know how all the innocent, individual, contributions by people employed by the bank fit together. The overwhelming majority of employees, including those in agencies like the CIA and FBI, have no idea what the big picture is because they are compartmentalised from what is going on elsewhere at their own level, let alone at higher and higher levels.