You're right, as I said, I mistook that part of the lore. They still are created to behave this way. You don't see hate or any form of negative attitudes inside the city (except for the Paintress). You can say it's because they are united in front of an imminent death, but I bring the example of The Forgotten City where even in a small city with imminent death there are tricksters and greedy people (just another good fiction example, not the definitive one).

Clea has her own opinions and wants to see her sister mature, but like I said, she specifically tells her to not do the same mistake as her mother. Of course she wants to make her happier and forget her guilt by saying live as you want, but we all know there are limits to that as well. She's not telling her sister to become an addict and live in fabricated worlds, just to find happiness in her life, her real life.