Sorry, but s'reverence, I think Hari is dead wrong.  This is an extreme economic theory that has succeeded -- not failed -- wherever it has been tried.  

It has succeeded in transferring huge chunks of both industrial and biotic resource from the public/commons into private pockets;  it has succeeded in consolidating a greater and greater proportion of global wealth into the hands of a smaller and smaller number of oligarchs;  it has succeeded in rendering the general populace less secure, less educated, less healthy, shorter-lived, more desperate -- a more "willing" and "flexible" workforce, in other words;  it has succeeded in casting the very notion of government into disrepute;  it has succeeded in blaming poor people for their own suffering;  it has succeeded, in other words, consistently and spectacularly, achieving its architects' (Bosses and finance capitalists, oligarchs) real pragmatic goals (rather than their threadbare lip-synch "principles" and promises).

We are living with the consequences of its success, not of its failure.

Remember games theory:  when a given set of rules predictably and reliably produces a given outcome, then we must assume that the purpose of this game is to produce just this outcome.

The System Works.

The difference between theory and practise in practise ...