Since you said "for the world", I'll just point the obvious counter-argument - given how politically unpalatable large troop losses have become since Vietnam, less asymmetry in favor of the U.S. military might well make the kind of military adventures the world generally detests substantially less likely. Of course, given what we now know regarding the depth and quality of post-invasion planning for Iraq, it's questionable whether there would be any meaningful difference.
Then there's the other counter-argument with respect to Russia and China - and it's the same argument that was used against Reagan's SDI (when a few still thought some of it might work) and any meaningful ABM system. Namely, that inducing too much asymmetry in specific areas provides incentives for the potential opponents to engage in much riskier behavior, develop asymmetrical first strike measures, etc. Less relevant now than it was 30-40 years ago, but not without any merit (recall the recent Russian announcements regarding their new missile programs).