You can certainly look on the bright side. Generally, mainstream society favours the bright side, and subcultures or marginalized, wannabe prophets emphasize the dark.

I'm not sure there's much of a difference between prostitution and pornography. It's all just sex for money. One might be more dangerous than the other, but that's subject to regulation. There's more pornography now than before, which means an increase rather than a decrease of sex for money. Now it's being filmed.