When you work less it doesn't automatically mean someone has to work for you. Each time a more efficient method is discovered, you could - in theory - work less to accomplish just as much. The trouble is, I think, that capitalist business owners respond by tightening the screws. I guess the idea is "why should my employees work less ? I will have less money than my pal business owner." If he doesn't tighten the screws, he will lose competition to another company.