This thread made me think about books like "The World is Flat" and that show "Mad Money", which I never actually read or watched but indicated to me how pop-culture economics has become, and how information laden with opinion and packaged as truths are so readily tossed into the public, even when they've got opposing sides with their own opinions and information.
It seems tied into, at least in America's case, the fascination with nutrition, health, and medicine, with people obsessive over their intakes and treatments. It seems tied to politics, with huge numbers being used regularly in arguments over who's right. It seems tied to shopping, with price quotes available from multitudes of retailers and coupons every week. It seems tied to video games, which have become more invested in technical specs and computational power over time.
All this does indicate a sense that humans, or at least Americans and others in this situation, are becoming addicted to information. Humans have always been addicted to information, but we are able to indulge in them with the technology we've had time to develop.
That said, I don't think we should view it as a mathematization of culture, unless you can also call our situation "an instantization of culture" or "a fracturization of culture", because we are becoming a more professionally specialized and dependent on quick information and quick results. It's an opinion I think is true, but it is misleading and devoid of significance; we as humans have operated on the notion that life can be made easier, safer, or more efficient through reason and invention.
Thus I think:
1) The significance in the change of our culture isn't a reflection of a change in human nature, but a change in the situation we are in. It's the situation that will continue to change, but there is nothing useful to be said about inevitability; as the people of mere decades ago could not predict where we are today, we in all likelihood cannot predict the situation of decades from now. Situations are never entirely in our control, and as humans, we can attempt to adapt to it.
2) In relation to the statistics given earlier about personality types, I think it is safe to say that a good deal of people like to think they are being rational by merely computing or reciting numbers and arguments others have given, and it seems likely that those who actually are rational can understand the significance of the information available, and make use of it to affect the direction of culture's future. And as evidenced by a few modern geniuses I've read from, rational people can appreciate the significance of things considered separate from logic: family, love, forgiveness, etc. Perhaps because they themselves have not compartmentalized the facts of life into separate aspects, but instead recognize that true rationality looks at all relevant aspects and incorporates them into a structured philosophy upon which life ought to be lived.
If only the few geniuses were louder than the Gossip Girls and Alan Keyes, we may be headed to brighter days.