Because they think they have the big picture, thus they see what is best for us. take a look at someone like McCain. who is more arrogant than he? He's been there since the creation of earth and there is no one to blame but the people who keep voting him back into office.
Venezuela is an excellent example for us to look at though. the language of their leaders as the country was taken over is much the same as the language of our own left, including our president. Venezuela is a country that could be very wealthy, but the leadership has systematically taken over private business and industry, and destroyed them. They did not take them with the idea of destroying them. they took them because they believe they could administrate those things and make it all fair.
whenever you hear the words fair, or economic justice, you are listening to someone who believes that the government should be the arbiter of both fairness and economic justice.
We have one thing that saves us...so far. we have a robust middle class in which most economic power, and voting power still reside. it is very easy to destroy a middle class though. we see that it is already being done. 1st take the bottom part of the middle class and make them dependent on government. offer programs, rebates, free stuff, and you have them. then take the top of the middle class and reclassify them as the rich. tax the crap out of them. some will learn to play the game. others will find it easier to join the lower middle class and just take the stuff.
almost every program out of this admin, fits the above. they are directed at the destruction of the middle class, which includes small business.