Power was extremely important in Europe in Caesars time. Power determined who praised you, whether or not you were popular with the citizens, and it determined whether or not you succeeded in government. To be second man in a large country, and not have full and final say over everything was not as lucrative as being first man in a small country and have rule over the entire population, small as it may be. To be first man was to be the most important, well respected and revered. Someone who was first man would not have to take orders from anyone, and not be looked down upon, because he wouldn't take orders from anyone else. He would have extreme wealth, and popularity, more so than the second man. These traits made the first man position seem more desirable to anyone. Even if the first man only ruled over a handful of people, that man would not have to confer with anyone else about doing certain things or deciding laws. Caesar knew all of this from first hand experience and knew that to be first man was to be the most important man, and if you weren't the most important, what is the use of being there at all. Caesar understood that to be second man was worthless because that man would always be overshadowed for the more prominent man.