I have often wondered what made the West so great during its golden age of innovation (and to answer what we're missing today) and think it can be attributed to a single-mindedness in our culture and leadership towards a common goal.
The Industrial Revolution (and American Revolution) would not have been possible without the overwhelmingly popular Age of Enlightenment (a cultural movement of intellectual reform that emphasized reason over tradition). Such multi-national cooperation and exchange of ideas had been previously unprecedented. The intellectuals of each country banded together because they had a common enemy (entrenched tradition, religion, and monarchy).
Similar patterns (large-scale cooperation towards a common goal) can be found in the Second Industrial Revolution, the Atomic Age, and the Space Race.
So the question remains: what singular goal(s) do we have today?
The Internet has a great deal of potential to be used as a vehicle for a new intellectual revolution that may drive a new age of progress. I've seen a few hints of this in the OSS community and Silicon Valley but so far neither have found a common goal that resonates strongly enough.
tl;dr : The want of progress is not specific enough to inspire. We need a new, overarching goal to drive the next age of progress.