Mallrory is correct. We all bring our different strengths to the table.
No, not all of us. Not even most of us, in many cases.
The problem with
trekkiedane's position is not that it's elitist. All political systems are elitist, by their very nature--anyone who thinks otherwise is just kidding themselves.
Democracy's great virtue is that it allows for the
peaceful circulation of elites. Basically, it's a gentleman's agreement among elite factions that they will compete peacefully for control of the state. Elections are bloodless revolutions, and politics are the continuation of war by other means.
The problem with
trekkiedane's position is that governments need power to function. In basic terms, there are three types of power: force, authority, and influence. The government in a functioning democracy possesses a potent combination of authority and influence, derived from its popular mandate.
If you're going to get rid of democracy, you need some kind of alternative power base--and historically, the only alternative form of power available has been naked force. This means rule by warriors--whether medieval knights, or modern military dictators.
So, even if we could define who the 'knowledgeable' are, where are the knowledgeable going to get the power they need to rule over the ignorant?