Lowest and highest iq survive longest because lowest iq services highest are fed hope and get free benefits from the system and aren’t smart enough to find a way to something better so are satisfied. High iq uses the lowest iq and middle class that gives them satisfaction and pay for their healthcare without issue. Middle class do soul sucking jobs and know if they didn’t have to pay for most of what they get they could level up but are preyed on by the highest and the system in order to keep the system and the highest going. Leading to low satisfaction in life and shorter lifespan