But, with unlimited clean energy, we can pay "at cost" prices, making what we do with the energy the value proposition.

In theory yes. But world is based on the gatekeepers. They will find a way and gatekeep that. Bitcoin started as a way to give decentralized power over money. And look every bank now has their own coin and blockchain and also they hold the bitcoin the most. In reality, gatekeepers and rich always have means to control the narrative.