>>716393356The people of the painted world aren't just memories that doesn't make any sense. They're newly created beings experiencing a world that they interact with and shape the future of. Where are you getting the idea that they don't have a society or a culture? Their society and culture is well established in act 1.
Are you assuming that literally every interaction in that world is being hand-managed by Verso's soul or one of the other Dessendre family? I don't see any evidence that that is the case.