>>41457567The "Sith Lords" came about from disgruntled and rejected Jedi who used their gifts for selfish ends, organizing themselves into delinquents who were the antithesis to the noble Jedi. After years of clashes, the Sith were thought to have been finally disbanded through the Jedi's vigilance. But that was until the incident which left a Republic High teacher, Mr. Jinn, dead and a so-called Sith Lord, Maul, paraplegic.
In the present, deputy headmaster Dooku tried to win young Kenobi over to the CIS, citing his belief that the Sith had already infiltrated the high ranks of Republic High, and that he founded his school in opposition (see: Episode II). Of course in reality while Dooku was a former Jedi knight and later a staff advisor to the club, he had become disillusioned with its ideals and fell under the influence of Headmaster Sidious.