I think the most used lie has to be "I only do this job because I love sex, Its not about the money at all" If that was true they would not be charging for it.
Yes they may well like sex most of the time but it is like every other job and done for the money first and foremost
I quite like the job I do, but I wouldn't do it for free. I have to pay the mortgage somehow.
I guess that's the difference between the WGs who are just doing it for the money and those who enjoy the job. The former are like the Tesco cashiers, McDonalds servers, Cleaners etc who just work for money. The latter are the ones who enjoy it, rather than merely tolerating it.