I agree with you on the fact that most people reason this way. But IMHO it is bad for the individual in question to waste their time in this life. Moreover I am convinced that if the person who gets a lot of spare time is using it to study, train themselves and nurture valuable relationships in their life, not only they get a better life, they also will become efficient over time. At some point they might spend that 1 hour assigning tasks to 200-300 people and get much more work done then they did by themselves before.