Which I'll probably derail a little bit by saying that this is SS/DD for Mother Church. Glenn summed it up well saying whatever's good for the globe is good for the Church. With the BRIC bloc nearly demanding a global currency (woefully underreported by the state-run media), and the Church only fairly active in one of those countries, of course the Church wants in -- or de minimus, certainly doesn't want to be left out. Banking interests and all that you know ... cough cough harrumph ...
It's a simple perversion of piety. The Church likes to pretend that its main benefactors aren't rugged capitalists, or even just plain merchants & professionals, and also likes to pretend that not just raw unfettered capitalism but even refined commerce is somehow dirty; therefore through some paralogistic twisting of the Gospel (from a subset of men who have almost universally never created a job, or multiplied fish), Caesar can demand three or even four times the tithe, on top of the tithe itself.
Pope Benedict I think is particularly keen on expressing himself a la JPII in humanist terms, to maintain a continuum ... of sorts ... but as Larry so aptly put it, "Now, kindly get back to talking ex cathedra again."