I dare you to remove Obama. I dare you and a thousand of your friends to remove Obama. You can't. Your voice is useless. In the elite system, let's say there are 1000 people who belong to this elite class. If 10 of them start agitating against the leader, then their problem will immediately be heard. Each of those 1000 people has a circle of people around then, the second class of elites, who can get a message to them. In this system, if you want to lead, you only need to get into the upper circle, you don't need to do the completely impossible step of being elected.
If chinese leadership were corrupt, then they will be immediately removed by the large number of intelligent people who are in the upper part of the party.
Those countries I listed all have a similar system, and power is handed from one member of this elite ruling class to the next - strangers or opposition don't jump in and take over power. Yes, there is democracy, but there is no chance of someone not in the system getting into the class.
Yes, what I'm advocating here is the complete opposite of everything you have been brought up to believe - but the difference between me and you is that I think about even the things you are supposed to accept. Democracy is good - whoever would think to question that? You should. Question everything, even the things you think are obvious.
To truly understand, you need to believe in what is wrong for a while. Only then can you understand both extremes of force and see where the truth lies.