Answer:
Because it is not benefiting the government in a free market economy. Because the government wants to have the power.
Explanation:
The US Constitution divided power in three independent branches: the Legislative Branch, the Executive Branch, and the Judicial Branch. This separation applies to the federal government and also to the government of each of the States.
The main aim was to keep power balanced. The Constitution also established the 'Checks and Balances' system, through which each of the powers can check on the others and prevent that they exceed their functions. None of the three powers could gather such a large amount of power to rule over the others, without being punished.
I don't know where it is but it is important because it has a lot of water and most people needs it