The more I think about it, the more I'm coming around the idea that we might not want to have an official theme. Placing ourselves in a certain theme is bound to always be unsatisfactory to a solid chunk of the population- most people don't like LazCorp, and of them, they're all divided on what they want to replace it. I think in the long run, we may find more potential to develop our own, unique identity without shoehorning ourselves into a particular set of titles and culture that we may soon grow tired of- as with what happened to the HRL, the CU, the Realms, etc.
I would support legislation to give our titles respectable, but thematically neutral names. Things like legislature/congress, Delegate/Queen/Lord/Lady, High Court, etc. My first thought is that LazCorp should go. And as much as I dig the ancient Greek idea, and I do think we can make that work, I'm inclined to believe we'll end up better off in the long run if we develop it without an official rule enforcing it.