You're right, and it goes much deeper. These corporations effectively own enough of our data to trivially deanonymize and target people. An organization of people who believe they are morally justified in they cause are liable to abuse such information, regardless of which side they belong to.
That's the most terrifying part to me as a dev. We don't even need neural networks to search petabytes of social media content for keywords. If we allow corporations to become politicized then we open ourselves up to unprecedented abuses.