I know I'm not the most beautiful model on flickr. And I accept that, because my character and personality enriches my work with a depth and style that makes it unique. However, I would be a fool not to recognize that the fact that I am at least moderately attractive is a huge benefit to my work. If I were considerably less attractive, I might very well not bother attempting the kind of photography I've been focused on. After all, photography is primarily a visual medium, and it would be silly for me to ignore the aesthetics of visual beauty as I approach my work.
Total body acceptance recognizes both of those tenets. And that is the truth about beauty.
Beauty is not everything there is to life, but it does have a certain appeal. Not everyone is intelligent. Not everyone is athletic. Not everyone is strong. Not everyone is funny. Lacking any one of these traits does not make you worthless. Find your individual strengths, and revel in them. Don't dwell on the qualities you do not, by chance, possess. You may regret that you are not pretty - well I regret that I am not even a girl to begin with. But I have other qualities that I can be proud of. My not being a pretty girl, while unfortunate, doesn't ruin my life completely, and it doesn't stop me from being able to positively appreciate others who are pretty girls.
So let the beautiful model, and do not condemn them for it. Meanwhile, if you are not counted among the beautiful, find the place where you do belong, and pour your heart into that important work. If you do, you are bound to find others who will admire you for it.