Running things is actually hard work. Even if you're nominally in charge (the "boss") you don't actually have to run things, but you have to hire people who can. I'm sure most senators, for example, are horrible managers, but if they hire a competent chief of staff and let them take care of things, that's fine. Senators can set the big picture and go chat with people and be on teevee or whatever, and leave the actual implementation to others.