In trying to track down the origin opf the phrase 'private affluence - public squalor', (which turns out to be J K Galbraith) I came across this blog from the Mises Institute.
What struck me most about it as I read the posts, and more particularly the comments, was the evangelical fervour with which the discussion was conducted and sacred texts quoted. It reminded me also of my younger days and the similar fervour of members of the Socialist Labour League, Militant and the SWP.
This seems to be the inevitable outcome of certainty - the more sure you are that you have the answer, the greater the fervour with which you promote it and eventually supress dissent. There are of course honourable exceptions - but not many.