Creating the Cone of Silence

In my view, an ideal company headquarters would have the usual meeting and training rooms, private offices, eating spaces, and appealing views and decor as well as one feature that is seldom found:

Hideaways.

Designating some rooms as strictly enforced Zones of Silence and Contemplation would permit quick escape from the hubbub of the workday. Complete privacy would not be necessary - you could have a living room environment with space for several people at a time - but silence would be mandatory.

I believe this makes enormous sense. Now, pretend that money constitutes no barrier. Why would many organizations resist adopting the practice?