While it was true that Alexander did not take many major policies regarding the development of Zanzan, it was not as if he did not take any.
Because to be specific he did take one, mainly making use of the few hundred learned people that Pasha Farzah had sent.
Theocles was put in charge of overseeing their day to day activity, where he would arrange for them to be taught the beliefs of Gaia, most of which he had made up with the help of Ophenia, with some sprinkling of inspiration from Alexander.
Twice a week, these priests would learn these theological texts, as well as earn experience in how to run a temple- such as giving sermons, tending to the devotees, collecting donations, looking after some of the poor, providing some rudimentary healing advice and all sorts of other odd jobs.
But all these could have been said to be their secondary task.
Because their main task, something they did four days a week seemed to have been teaching.