The idea that privacy can be traded away transactionally is a misrepresentation. Privacy is a choice; depending on who I am interacting with I will withhold certain information about my life.
If someone convinces a friend or family member of the lie that they can trade privacy for services, then my communications with them are compromised without my consent.
This is all about every being's right to choose to be private. The idea that it's okay to impinge this right as long as someone thought of it as a transaction is morally bankrupt.