Nobel prize for 'nudge theory'

Hi folks, to me, this just makes a mockery of what we call social science:

'Nudge' economist Richard Thaler wins Nobel Prize
http://www.bbc.co.uk/news/business-41549753

Is nudge theory even a theory?
Has it actually had any tangible benefits?

Compare it to where science really makes a difference...

How the search for a 'death ray' led to radar
http://www.bbc.co.uk/news/business-41188464

We are a long way away from the powers that be actually recognising good social science...