Remember Pest-Pony!Applebloom; you are the only ones protecting Equestria from the ravages of pest swarms. No matter how unseemly that cutie mark may seem, that still puts you far ahead of those whose only talent is living like a princess and possessing a bloated ego, like Diamond Tiara. She'll never measure up to you in terms of exaltation; so don't give a rat-ass about what she, or any other pony like her, think of you.