Peter Thiel refused to hire someone who liked to play "hoops":
"PayPal once rejected a candidate who aced all the engineering tests because for fun, the guy said that he liked to play hoops. That single sentence lost him the job. "
http://blakemasters.com/post/21437840885/peter-thiels-cs183-...
You seem to assume everyone agrees that making hiring decisions on factors with zero relevance to doing the work doesn't make sense. Sadly that's not the case.