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.
What people really want in the theater is fantasy involvement and not reality involvement.
Great artists are people who find the way to be themselves in their art. Any sort of pretension induces mediocrity in art and life alike.