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.
We should remember that there was once a discipline called natural philosophy. Unfortunately, this discipline seems not to exist today. It has been renamed science, but science of today is in danger of losing much of the natural philosophy aspect.