The all-seeing eye works for supermarkets all the way to the producer, it works for housing all the way to the builder, it works for cars, it works for services

The all-seeing eye works for supermarkets all the way to the producer, it works for housing all the way to the builder, it works for cars, it works for services like garage, additional classes, etc. There is no reason people will all of a sudden be stupid when it will come to healthcare, transportation or education. Point is, competition is transitive, and the last tier is always competitive. Therefore by iteration every tier is competitive.