I wouldn't worry what people think of your name here as a reflection on what they will think of the name in the context of your story. The name people use, at least for me, becomes their name. So when I see the name I associate all the qualities I have learned about you. But in the context of your book you can make your name as impressive or pathetic as you want, by its context. For example, when I first read Voldemort, I thought that was the stupidest name for a villain ever. But as the name began to represent such a heinous character, one that instilled much fear in the populace, it stopped being ridiculous to me.
Heck, I've been using the handle "Toothpaste" for two years now, and it's got to the point that if I see an ad for Toothpaste, or see it referred to somewhere else, I think people are talking about me. It's all about context.