Unless you're never wrong, you should embrace hiring smart people that have completely different ideas than yourself.
To answer the question of waterside81: Yes, I rejected somebody just because I did not want to have an 18 year old kid working with us that calls himself 'very very conservative'. I do not care much about left or right wing. I just do not want extremists. :)
And I am pretty sure I got rejected myself at least once because of my political views that collided with the business model. Which is perfectly ok and a very understandable reason.
I don't look at it that way. Smart people can disagree if they place a different weight on the various data points.
Plus, people with experience in other countries or cultures can have very different definitions. It seems that the spectrum of allowable political opinions in the US is much narrower than in Europe. Many American liberals would be considered quite conservative in some European countries.