The exchange rate between capital and labor (i.e. the most important economic variable in the global human society) is far out of whack. It's a 9/11-scale moral catastrophe [0] and has been for quite a while. It's at a low point, because the concentration of capital has made those with connections to it into a set of corrupt gatekeepers with more power than any government, and more than any individual and most businesses.
Anyway, possibly 90 percent of top-talent people are doing work far below their capability. Travel overseas to some poorer ("third world") countries and it's 95 or 99+ percent. I know math majors in the Philippines and even in Hong Kong (which is not poor at all) working call-center jobs.
[0] Yes, depriving billions and impoverishing a significant subset of them (obviously, the direct victims of Silicon Valley chicanery-- see the Schmidt/Jobs collusions-- are rarely impoverished themselves; but people in other countries suffer more severely from the devaluation of labor) constitutes "9/11-scale moral catastrophe". I invoke 9/11 because it started a war. Maybe this will, too.
Google's "free massages" have become a lightning rod for this sort of supposed spoiling of top technical talent. When I was there, you got one per year (on your birthday) plus one for starting out. It's not like you get free massages whenever you need to relax. It's not devoid of value, but it comes out to about $75 per year-- a tiny marketing expense for getting "free massages" out there. In other words, while top talent's approach value (and, one can derive, market value and leverage) isn't high, it isn't zero.
Right now, talent and capital exist, both, in abundance. We have shitloads of both in this world. The problem is a small parasitic set of well-connected influence peddlers and bureaucrats who've managed to become gatekeepers in access to that capital (often, passive investment capital that isn't theirs). The enemy isn't "the rich" (there are plenty of good rich people) or governments (indeed, many national governments and militaries will be our allies when we finally go to war on the global elite). It's the fact that despite an abundance of resources, a small number of players have developed, through upper-crust favor-trading rather than merit, an egregious and malignant control over their distribution. There's a term for this: corruption.
But with the number of smart people out there (especially in the poorer countries) who are working in dead-end jobs, there is definitely not a "global talent crunch". It's a corruption problem.