Hmmm... Why on earth would someone take a chunk of marble, a chisel and hammer, and pound away to make a sculpture that is just stuck in the Vatican for people to look at? (the pieta). Why would a guy lie on his back to paint pictures on a ceiling just for people to look at? (Sistine Chapel) Van Gogh painted how many swirly pictures? You get the point. If everyone saw creativity as a waste of time, look what we would miss.
Art is art. It brings beauty and happiness to the creator, the Creator, and everyone else.
Keep quilting. :-D