This is why 'inequality' is such a bad thing to measure. Make sure the lowest rungs of society have enough to live on and the opportunity to move up. There's

This is why 'inequality' is such a bad thing to measure. Make sure the lowest rungs of society have enough to live on and the opportunity to move up. There's one way to make everyone equal: kill everyone. Inasmuch as these revolutions have made people more equal, it has largely been due to how effectively they did exactly that.