You forgot the part about how Emperor G would come and burn your house to the ground if you tried to build outside the city because building houses was his idea.
But wait, they didn't invent building houses. But Arbiter W lives in the walled city and the Emperor gives him gifts. Arbiter W considers Emperor G to be the person who owns the idea of building houses, and Aribter W is the one that sent the arsons out to your place, so you are now shit out of luck with a burning house.
But wait, they didn't invent building houses. But Arbiter W lives in the walled city and the Emperor gives him gifts. Arbiter W considers Emperor G to be the person who owns the idea of building houses, and Aribter W is the one that sent the arsons out to your place, so you are now shit out of luck with a burning house.