"Lisa Joy, Nolan’s fellow creator and showrunner, said that dystopian narratives can serve as a way to explore potential futures in moments of relative calm.
'If you look at history, there’s cycles of war, of poverty, strife, famine and disease,' she said. 'You know it would be hubris to think we were immune to those cycles forever.'" (Dave Itzkoff, "They Created Nightmare Worlds for TV")
These stories can be a way to prepare or warn people for what might happen if we don't change unjust habits: like Medea shows what happens when people aren't given any rights!