It can be difficult for people in a software management role to come to grips with the fact that they aren't the smartest or most qualified. Its a huge blow to their ego and sense of self worth. They dislike the idea of meritocracy because they are not in their jobs based on merit. One way they act out on these feelings is this 'resumes don't matter' attitude. You see lots of passive aggressive behavior like random destruction of resumes, rejecting candidates over the hiring team's objections, etc.