Miners are motivated by profit, if your cost of electricity is lower, your profit is higher. I’m not sure why you are trying to obfuscate that simple fact.
Miners are motivated by simple profit calculation, not R&D into energy generation. R&D has an unbounded capital risk, while bitcoin is a (relatively simple) statistical calculation of energy-cost which is a bounded cost (at any given time, within a range). Not a single bitcoin MINER is "greatly incentivized to further decrease power cost".
There are industries in much better positions to revolutionize energy production than bitcoin miners. In fact, there basically a single industry that doesn't have this incentive.