If you're hungry you might feel as though you could just keep eating and eating. However, if enough food is available, you'll stop and hit a point where more food would make you feel worse instead of better. You'll get hungry again, but part of the cycle includes satiation. For purposes of discussion, I'm talking about most people here, not those with eating disorders or unusual metabolisms that affect their ability to feel satiety.

I think most people have a limit on their desire for status, though that might be more like the situation you describe. Few would turn down a chance to be the world's Dictator for Life, but they've hit a point where trying for more status than they've got seems like too much trouble.