On the other hand I don't see much success of data company outside the adtech space, is data only valuable for advertising ?
The company that use data not from ads are very few, I can think only at Palatir, which analyzes data don't own it, Netflix and Spotify, whose success I think is more related to the boom of the internet infrastructure than their recommendation engine, and maybe Amazon, which arguably sell at the lowest price on the internet.
Are there company who are extracting direct values from data ?