<p>"I’d think non-need blind schools would want proof we don’t qualify for aid. "</p>
<p>The key word is BLIND. If the school is truly need blind, then they do not want proof that you don’t qualify for aid. If all applicants who do not qualify for aid identify themselves as such, then that would identify those who do need aid. Need blind means the school does not count needing aid against you, and does not award you for not needing aid.</p>