Ah, the old 'statement vote' vs. 'better song' argument! If we all just voted for the 'better song' it would be pretty easy to just present stuff that's as 'consensus' as possible. Stuff we already know we like. It would be boring!
It's hard to get the formula just right. It should be a challenge to please everyone.
Plus it gives people with...let's be charitable and call it 'eccentric' taste - a chance to proselytize a bit. I wouldn't want to take that away from them.
What we 'need' vs. what we already know we like. I know what I'm picking.