[kahmeal]

It's the same as voting. You give everyone a vote because that is the least exploitable, fairest approach given the situation. You don't try to determine who is "most qualified to vote" because you end up with what the republicans are doing now. The likelihood that you accidentally recruit a power hungry dictator by virtue of his random selection to some position of power is much less than that individual maliciously seeking it of his/her own volition.