When you have a gown, there's much more to be concerned about. Where is this crease falling? Are you making a weird shape with the dress? Are you doing the designer justice? With a bathing suit, it's more about you and the mood you convey.
People are consuming more than ever, but I think they want a bit of honesty and depth. Adele, Gotye, Janelle Monae - they're giving you a catchy song, but it's also a challenging song at the same time.