Um, 3d printing? Robotics? Computer aided design?
I suppose it is the lack of imagination of top-end architecture that these techniques, some of the hallmark technologies of our age, that there isn't a healthy market in their use in architecture.
The employment of these things all seems focused in mass production and cost reduction (which isn't a bad thing), and seems to ignore the possibilities that programmable manufacturing and production could have on architecture (which could push the state of the art).
It might also be that being an architect kinda sucks these days. Not enough jobs, and those jobs are paying worse, to cover the costs of schooling.
So there aren't the true geniuses anymore? Maybe it's just that the iron rule of finance has drained the budgets from every large scale project, and the ultra-rich are now no longer artistically inclined, they are either concerned with the magnitude of their fortune in numbers rather than edifices.