You are not only working to mentain a functional society, you are also working to constantly grow it (each year more stuff must be made, more money must be earned, more of everything) it and also to create a very big surplus for the rich. We also burn perfectly edible food, ruin perfectly wearable clothing and make electronic devices that intentionally break in a few years to get you to buy another one sooner just to get the 1% more money. If we didn’t do all that and they lived normal, non-luxury lives, everyone would have a lot more free time. If everyone worked only 20 hours a week, we’d make enough to sustain our society.