It's interesting.. you know why? Because this just reminded me about that story of those 5 monkeys. You put 5 monkeys in a cage. For several weeks, you just give them poor food and little water..and such. One day, you hang a banana and put a leader leading to it. OF course, one monkey, decided to go after that banana. When she tried to do that, you throw ice-cold water over the monkey, and over the other 4. The next day, another monkey tries that, and you repeat the process. In a couple of days, a new monkey comes in, and another goes out. The new monkey, without knowing the 'rules', tried to go after the banana. What happens is interesting: the other 4 monkeys, goes quickly and stops the monkey to get that banana, beating the hell out of her. So, she understands that the banana is a forbidden thing. Next week, another monkey comes in, and another goes out. Same story again. In a couple of weeks, inside the cage, there are no monkeys from the first group. And yet, the banana is still there, and none of them isn't trying to get it, even if they never have suffered from the ice-cold water. So you continue this test as long as you would want, and no matter how many generations of monkeys you will change, that banana won't be touched and your ice-cold water won't be used.
One day, one of the monkeys, asks can't they take the banana. The other one, said that, 'we simply can't'. So this principle, is the same way the governments are ruling their people. There are things you aren't allowed to do, and sometimes you don't know why. But if you will dis-obey, police, extreme forces etc will fight against you.
So revolutions, are made when people feel that something is smelly. But for that, they need very strong leaders. And considering that governments are some sort of 'leaders', they don't like to let the people think 'too much'. It's easier to rule a bunch of stupid people, rather than a bunch of smart-asses ;]