Making doughnuts and soft drinks available to everyone for free is superficially a huge win for people. They are valuable (as determined by marketplace) and low

Making doughnuts and soft drinks available to everyone for free is superficially a huge win for people. They are valuable (as determined by marketplace) and lowering the cost makes them more available to everyone. But measuring the net societal impact of a cheap stopped at that point is basically worthless. There are many 2nd and 3rd order impacts that must be included. The obvious is health, but others include the marginal cost considerations of where the money will go that is "saved". Or what alternative food would be purchased (if it's deep fried Twinkies, maybe free doughnuts are a health win). Any work that makes the ad marketplace more efficient (easier for creation and deployment of effective ads or ad instrumentation) has huge effects on relative competitiveness of startups vs. conglomerates. Just as one example. And those effects directly affect consumers. I can avoid ad surveillance to some degree, but am powerless to help a business that can't survive in an ad-driven economy. I can't single-handedly keep my local hardware store in business against the threat from conglomerates capable of operating indefinitely on zero margins.