Libertarian paternalism is seductive because democratic politics is a cumbersome and messy business. Even so, democracy is far better than even the best-intentioned technocracy at discovering people’s real interests and how to advance them. It is also, obviously, better at defending those interests when bureaucrats do not mean well.
On a side note, Cass Sunstein is married to an Irish woman and is therefore entitled to citizenship. I wonder if the Royal Irish Academy might learn something from the FAI in this regard.