I don't think the term scrappy is the root cause for some people undervaluing quilts. Some people will never consider a handmade quilt any more valuable than the $19.99 comforter made in china available at Walmart. They just never will. Other people like quilts and recognize that they are an art form.
I, as a quilter, am happiest when I don't spend any time thinking about what other people think of my work. I doubt I can change people's opinions, so I just make what I like and make at least one person happy-- myself.