Floating around the inter webs goes this article. While I love it and think it's funny, and the best part - it brings everyone back down to earth, there's something to be said for showing your best work using the tools you have.
Though I wouldn't call many Instagrammers photographers, knowing how to crop, create your composition and tell your photographic story in the best way possible makes for a great image. If I took the shot as is, SOOC, most would look like what they're showing here. Good photographers know what to crop out, they see the photo not as it is to the naked eye, but what it is once all of their creating has been done.
Keep shooting, keep composing, keep cropping. The best images are thought through and edited to the way your creative brain sees them.