Familial monarchies appear to be the only system that have incentives aimed at the enduring good of a nation. Monarchs are incentivized to leave a legacy of relative peace and prosperity to their heirs. But this system too eventually falls victim to overreach, greed and corruption. I don’t think there is any way out of the anacyclosis of a nation’s constitution, postulated by Plebius. Humanity will always be messy and history will always be on a sine wave.