Religious "undress" codes

The usual argument for dress codes in temples is that "immodest" clothing results distracts other visitors to the temple. This argument almost laughs at itself when you take into account the undress code for men in various temples in Kerala, for example. Many Hindu religious rites, especially in South India, come with this "shirtless" undress code. I have gotten turned on by shirtless male devotees on multiple occassions. While I haven't actually visited Kerala, photographs depicting religious gatherings there catch my attention for more reasons, perhaps, than were originally intended.