The point is to spawn a new medium, you'll have to imagine harder how positive that could be as people with lots of ideas are not going to give them to you for free.

Perfecting the tech for wide-spread use has trade offs; need for caller id, ease of slandering until trust in voice uniqueness recalibrates, all of which is going to change soon anyway but giving only rich/bad actors the tech at first has its own set of trade offs. Head in the sand is the irresponsible way.