The success of capitalism in S-Korea is not because of the number or size of it's Churches. Christianity has even less influence in Japan or Taiwan, leave alone the other places I mentioned.
Also "pure Capitalism" and "pure Judeo-Chritianity" are not working too well... if you look on the biblical scripture on charging interest for example.
Modern capitalism is a Western civilizational achievement, which owes a huge part of it's existance to Judeo-Christianity, which was however compromised.
I would agree with what I believe you are saying in that post.