This possibility is interesting to consider from an economic perspective. Let's posit that DL does just that, bring in the same value (as a whole system) as no

This possibility is interesting to consider from an economic perspective. Let's posit that DL does just that, bring in the same value (as a whole system) as non-DL. Inside such a system, there is a business advantage to implementation of DL, and there is a concentration of value around those with the largest dataset. This means that DL systems will still be very valuable in that they are a competitive advantage, but only so much as they are difficult to implement independently. The value differentiator then becomes the data itself. I think this points to a value proposition for data providers. GDPR and such seem to be quite correctly identifying and correcting for this risk.