[sebleon]

The Big Co interview process is a binary classifier (hire/no hire). It's actually reasonable to tune it to minimize false-positives, since a bad hire can be disastrous for all parties involved - imagine an employer changing their minds on you during your first few months. Tradeoff is that this will increase false-negatives, saying No to great people, and lead to stories in the link above.

Other thing worth mentioning is that "culture fit" might make companies turn down excellent developers, who don't happen to have the founders' same personality type.