So the I'm a "product" of Wikipedia? WordPress? Blender? Linux? mySQL?
Am I a product of the Oracle DBs behind the websites I use for free?
How about credit cards? Isn't the merchant and issuing bank the customer there? As long as I pay off my monthly balance, it's free for me.
My Facebook data is worthless. ONLY in aggregate is FB data valuable, and only if it is kept mostly secret from their customers (advertisers).
The more FB data you're using, the less you know about me.