You are exactly correct...the value of data is plummeting. As we trend towards perfect information, it seems like markets will begin to correct instantly almost removing short term profit takers and liquidity from the markets.
As consumers increasingly use engines like amazon and google products, retailers will continue to die off and the profit model will continue to be destroyed.
I don’t know where it all ends. Combine this with the automation trend it seems we in a negative feedback loop that doesn’t have an obvious solution. I don’t know what happens when there are just no jobs and no ways for 80% of the population to make any money.