They can take this information, use it in a digital context, package it with almost zero marginal cost and then sell it to data brokers.
The Cambridge Analytica thing is a great example, because actually the initial data harvesting that happened didn't violate Facebook's terms at the time. They had a reciprocal data exchange agreement in place. It was only when the This Is Your Digital Life app shared it with Cambridge Analytica that the actual scandal happened, because that's how they—