@Victorious:
Two reasons, at least, why corruption will occur in a democracy, both simple:
-Human beings, by their very nature, are, to quote Hobbes, "desire-pursuing machines," and so have a propensity to be, at least somewhat, corrupt. This can be as little as lying about who ate the last brownie or as big as the most gross cases of state corruption you can fathom--but to paraphrase another great figure, James Madison, if men were angels or devils, there would be no need for government, as they would either be so perfect and virtuous or so beyond help that it would be useless. Men are between such states of "perfectly good and honest" and "perfectly evil and dishonest"--and if you wanted to take NIETZSCHE into account he'd say they were Beyond Good and Evil, but I digress--and so it follows that while man will not be as absolutely corruptible as devils, they will likewise not be as free from corruption or from lying as angels would be. Men lie and cheat, at least a bit, and hence the need for government and regulations to control men, ergo, government is formed BECAUSE men are ALREADY, NATURALLY susceptible to being corrupt, and to assume men are not in the least but corrupt or suspceptible to the temptations of lying is to cease viewing men as men and to stop being a realist to enjoy the fantastic idealized view of man as a perfectly, saintly, angelic creature, which he is no more than he is an utterly devilish fiend.
-Democracy is built upon the idea that all have a say, but another key cornerstone of most all democratic systems, then, is a great component of corruption--compromise. A compromise in legislation cna very well mean a compromising of one's principle's, and it isn't too much of a leap to picture a senator, whole-heartedly anti-smoking, voting for a pro-smoking bill as a favor to another senator in exchange for that second senator voting on a piece of legislation the first, anti-smoking senator wrote up. Even more commonly, democracy often runs with capitalist societies, and so MONEY is needed to get and stay elected...and as the old saying goes, "money is the root of all evil." It's not only exceptionally easy to picture a congressman taking bribes from a lobbyist to vote one way or another--it's a FACT that such events occur, do occur, will occur so long as democracy and capitalism both stand, as lobbying powers HAVE been protected as free speech, at least to an extent. Votes ARE bought and sold...and so beings the rise of corruption in the State.
So--men are naturally corrupt, ergo a State of Men is naturally corrupt, and then an example of how corruption arises that is specific to democratic, capitalist societies.
THAT is how democracy is, necessarily, corrupt.
@Fasces:
It would depend, which I would choose.
IF I could somehow have PROOF that either I could become a Philosopher King or others could a la Plato's vision and NOT become corruptible AND that such a person truly WOULD BE ABOVE AND BEYOND THE CURRENT STATE OF COMMON MAN, then in THAT situation, yes, I'd be alright living with an IDEAL Philosopher King.
OTHERWISE the risk of a Nero or a Hitler is FAR too great, as one Nero can undo the greatness of 5 Augustuses.
We can have a string of 5 good, honest men who increase the well-being of all, and then 1 Hitler afterward who wipes out 6 million people and destroys the nation.
UNLESS I am SURE that ALL of the Philosopher kings will not only be just and fair but will also be of a QUALITIATIVE difference, that is, they're not just good guys but they're literally of a higher, more evolved state of Man than I, I must advocate for a democracy or, better still, a republic.
The risk is lesser when no one person, going corrupt, can destroy the nation, which can certainly happen in a dictatorship gone wrong, as history and human nature tells us since, again, ALL men are necessarily corrupt, at least to some degree (and, again, that degree can be as little as lying and saying Sally ate the last cookie when you, in fact, did, or it can be as great as to take away all liberties and to exterminate entire populaces while draining the nation's wealth.)
A Leviathan a la Hobbes and Plato's Republic is what is philosophically ideal.
A safer democracy a la Rousseau and Locke, corrupt though it may be, is more practical.
So until man becoems wholly philosophically realized according to his potential, I must side with the practical and the corrupt democracy--the lesser of two evils.