Most Helpful Guy
Short answer: NO; does NOT ruin beauty.
My first girlfriend had a nose bump but I never even noticed it till after a few weeks of dating. She was a total fox... Petite, blonde, and completely banging body (sorry, but true). Also, beauty is in the eye of the beholder so don't let one douche tell you to change something about yourself. For all you know there's another dude out there who likes everything about you.
I also DO NOT think you should have any kind of plastic surgery. It takes away from who you are, your heritage. I'm part native American and I'm very proud of my features and my history. You should be proud of yours.
As for Beauty in the mainstream-sense... Well, trends come and go. It used to be that a nose like yours was considered attractive because it was identified with the Anglo-Saxon gentry. Only after the Irish migration and assimilation did the smaller noses become a desired physical feature. Hope my attack from various angles helped you out.