It is impossible to end corruption, everyone in power resorts to greed and it will be impossible to stop it. There is an expression "it's not the size of the bribe that pisses you off, but the inability to participate in it."
Why so pessimistic, man?
Corruption can be fought and can be reduced, you may be right about Corruption being impossible to eliminate completely, but there are societies around the planet which have showed us good examples to make your cities and governments more transparent.
So perhaps it is more difficult in some countries than other but it does not mean it is a lost battle. I would personally be in favor of death penalty to high profile cases of corruption which involved high quantities of money, if it helps to clean society of such terrible problem. I know about the consequences of corruption, because I live in a country with many corrupt people in positions of power.