If they did, they’re idiots.
The gist of the theory seems to be that the elite of Rome utilized the ancient practices of occult secrecy and sleight of hand, along with inter-generational involvement, as a means for perpetuating their power. These methods explain why the conspiracy is so well hidden.
A major link is the Roman Catholic Church, which is no stranger to secrecy, sleight of hand or holding onto power for century upon century.