There's a reason big tech companies are worth hundreds of billions of dollars yet most of their users have not paid a dime. So yes, data is valuable.
Data is very valuable. Google shows advertisements like they're listening to people's conversations, except they aren't. Their data profiles and predictions are so good they know what you want to buy before you even know you want to buy it.
Search the Cambridge Analytica scandal.. I am not grossly over estimating anything.
I'm scared of clowns