History can come in handy. If you were born yesterday, with no knowledge of the past, you might easily accept whatever the government tells you. But knowing a bit of history--while it would not absolutely prove the government was lying in a given instance--might make you skeptical, lead you to ask questions, make it more likely that you would find out the truth.
Forget the politicians. The politicians are put there to give you the idea you have freedom of choice. You don't. You have no choice. You have owners. They own you. They own everything. They own all the important land, they own and control the corporations that've long since bought and paid for, the senate, the congress, the state houses, the city halls, they got the judges in their back pocket, and they own all the big media companies so they control just about all of the news and the information you get to hear. They got you by the balls. They spend billions of dollars every year lobbying to get what they want. Well, we know what they want. They want more for themselves and less for everybody else. But I'll tell you what they don't want. They don't want a population of citizens capable of critical thinking. They don't want well informed, well educated people capable of critical thinking. They're not interested in that. That doesn't help them.
There exists in society a very special class of persons that I have always referred to as the Believers. These are folks who have chosen to accept a certain religion, philosophy, theory, idea or notion and cling to that belief regardless of any evidence that might, for anyone else, bring it into doubt. They are the ones who encourage and support the fanatics and the frauds of any given age. No amount of evidence, no matter how strong, will bring them any enlightenment. They are the sheep who beg to be fleeced and butchered, and who will battle fiercely to preserve their right to be victimized patent offices handle an endless succession of inventors who still produce perpetual-motion machines that don't work, but no number of idle flywheels will convince these zealots of their folly; dozens of these patent applications flow in every year. In ashrams all over the world, hopping devotees of the Maharishi Mahesh Yogi will never abandon their goal of blissful levitation of their bodies by mind power, despite bruises and sprains aplenty suffered as they bounce about on gym mats like demented (though smiling) frogs, trying to get airborne. Absolutely nothing will discourage them.