Looking for advice for founding the Illuminati

I'm playing an artificer/warlock in a setting inspired by Han dynasty China. My character has taken it upon himself to essentially invent science, and happens to have access to all scientific knowledge through his Patron. (For reference, during the first session I happened to meet the most qualified contemporary doctors, who were treating poison with the finest incenses and ointments. The other sciences are in similarly poor positions.)

My current strategy is to start a cult of science. The Illuminati seem to be the best example for me to follow, since there is a decent chunk of science that is either heretical (e.g. earth is a Sphere, the nobility is dangerously inbred for no reason) or dangerous (genetics being the foundation for eugenics, fission/fusion being the foundation for nukes). Restricting these things seems pragmatic, and the traditional lodge structure gives a good framework for this.

So, this comes down to the question of which knowledge should be restricted, to what degree, and what traits should be tested to determine worthiness. What knowledge do you think is dangerous? And how do you think i should I test worthiness for that knowledge?