Why are droves of unqualified

How can one get into Harvard with out being a pure genius? I am completely against this idea of just above average students being allowed to attend an Ivy league school just because their parents attended. Meanwhile, the valedictorians, who have been dreaming their whole lives of attending Harvard can not get in. This does not make any sense. Only the brightest students should be admitted to the Ivy league schools. Do not get me wrong an above average students deserves a good college, but not an Ivy league school. The reason that I disagree with this is that one just can not decide towards the last minute that they want an Ivy league school. An Ivy league school is where the most brilliant minds in the world are, not just above average students. Where does this leave the valedictorians to attend? Just an average college? Above average students should be smart enough to plan ahead accordingly where they want to go and if they are a great athlete, really into community service, volunteering, honor societies, etc. then that is fine to allow them into an Ivy league, as long as they are not cutting off the world's brightest students from having a chance to experience America's most prestige schools.