Politics exist because resources and property are scarce, and there are two ways to get things: by economic means and political means. The economic way involves the market and trade and persuasion. The political means, which is where politics comes in, involves force, via "government" edicts, as the means to acquire and allocate scarce resources and property. Many have found it more to their advantage to use the political means of force rather than the economic means of persuasion.