it creates perceived shareholder value of an emerging market. that is it's purpose.
it's utility is not for the end-user. it's something for shareholders to invest in, and companies to push in an attempt to generate shareholder interest. It's to raise the stock-price.
And like all speculative assets... nobody will care about the returns on it, until they do. And once those returns don't materialize... poof goes the market.
Just like they did with all the speculative investment bubbles based on insane theories.