Importance of national income statistics to the government

it is very important for the government to know all about its citizens  for example like where there is the most crime poverty who voted for who and the population so then when they need to put laws or give money to help a certain population they know why or how

basic principles: federalism, separation of powers, checks and balances, judicial review, representative democracy, limited government, rule of law, individual rights and responsibilities, consent of the governed, majority rule, popular sovereignty, equal protection.

sorry i cant