I think its quite rare for a product to find widespread adoption because it reduces costs for the users unless a portion of the reduced cost can be captured by

I think its quite rare for a product to find widespread adoption because it reduces costs for the users unless a portion of the reduced cost can be captured by the entity building the product. The way this reads now, the only products built on blockchains will be industry consortiums trying to "cut out the middlemen", which they will then use to limit competition by excluding new entrants.