This is just a suggestion, Kinda?
There are many opportunities to make money by working hard and putting in the man hours, however what if you could use your looks to make you money.
What if we could have a strip club in the game where people can become strippers and "perform" for other people. It would add other ways to make money in the game. The strip club would of course have its own tipping system for people who are enjoying the performance to pay a little extra.