Perhaps you should not assume stuff. Not all prostitutes dislike their work; https://news.ycombinator.com/item?id=21346209

Now, an actual fact, I knew a guy, a licensed accountant, about 20 years ago who did the accounts of a working lady (ok, prostitute). He said she was pulling in about £80,000/year. He didn't say whether she liked her job so I can't help you there.