I think it was important to them because originally they were to obey to the crown, and had to listen to them no matter what. They weren’t free, and couldn’t do anything for themselves. After getting their freedom, they wanted to make sure the decisions were made mainly by the people. They decided that power should rest in the citizens hands as well. Which is why they became a democracy, so the people had to right to make decisions for their livelihood after being under the command of an unfair ruler.
