Liberals don't seem to get that with no disparity of income or possessions there is just no motivation to work. The greater and more visible the disparity the greater the motivation, provided the system allows all people to perform equally or at least proportionally well considering who they are. People may give up on a system that is rigged against them, but as long as the system is fair and equal and offers a path for the poorest child to become the richest adult, the sky is the limit to how hard individuals of ambition will strive to best each other.
People are by nature selfish! (Fact)
I have seen that every labor and every skill which is done is the result of rivalry between a man and his neighbor. Ecclesiastes 4:4a
Without the ability to better yourself....No one will try...
Competition is human nature...It’s one of the reasons that elite athletes try to better their own best running or swimming times.