At the risk of Godwin'ing this thread: How is prostitution exploitative?

You give out very personal "services" in exchange for the money you desperately need. It is perfectly transparent that you are being exploited, but it is not like you have a choice.

If you think that is ridiculous hyperbole: Do you think any poor American actually has the luxury to say "No, I am happy to pay more for food."? I don't understand why you think that filling out surveys is even remotely related to covering basic needs, but if you think it is you must be very privileged.