Yeah....you might want to clarify what you mean here...
Many of the women 'caught' in the porn or prostitution industry are victims, plain and simple. They are abused, raped, sold, drugged. Some continue doing it because they cannot get out, some keep doing it because they don't feel they deserve any better as they've been abused from childhood. Sure, there are some there who enjoy it, who do it solely for the money. But you are sadly mistaken if you think all of them are 'free' to get out if and when they want. Sin is slavery, remember, and sometimes, that slavery is hard to escape from, whether its because of emotional issues, or because someone else is physically restraining them.
Sometimes what these people need is for us to tell them Jesus loves them, that he forgives and cleanses them...that he sets us free. We don't get involved with the porn, because that totally negates what Jesus' message is. John tells us we are to stand as a light in this world, that we must stand in the light. You don't dive into a cesspit and try to convince people that light exists somewhere else...you stand outside the pit and call them to the light, knowing that as you talk to them, they can see the truth of the light where you are.