Just start digging around as to what Peter Thiel and Palantir Technologies is doing and you’ll realize that what you are predicting is already here. BTW, a campaign is using this stuff to compile lists of voters to be targeted.
https://en.m.wikipedia.org/wiki/Palantir_Technologies
And in the Lord of the Rings, the Palantir was first used by the wizards to communicate, and was taken over by the Dark Lord.
Apt name for that company.