What's to say current AI won't be highly power-concentrating by default?
The best models are owned by a few companies, and displacement of knowledge-workers mainly seems to benefit the capital class.
On-device / edge computing makes sense in a few very limited scenarios. And economically, price or watt/token (or watt/task completed) might always be better in large data centers.
No reason to think we are on a trajectory towards broad empowerment right now