It's not clear to me how there are Good aligned elements prominent here, mostly that it's very wealthy and able to fund the construction of temples- Good aligned groups might have representatives, but it's not clear how much influence they actually have, given that slavery is prominent (I rate institutions of learning as basically neutral aligned, generally). For example, if there's a a CG god of freedom (there might not be), why would his priests peacefully exist in an environment where slavery is prominent?
Generally, what are the Good deities in the setting, and what do they preach? I can probably invent an institution for each if I have more inspiration.