Apps and services not being forthright about what they do with your data is (unfortunately) the status quo. Facebook is the broker for this data in this case, and you'd be a fool to allot them any trust with it given their history. The Cambridge Analytica "scandal" is the system working as intended, but now with unpopular consequences.

Who could have imagined that a suite of tools used to manipulate and target users through commercial advertising and spam could also be used for political means.