Which is exactly what the locals would want, is it not? I mean, if I live in a place with cheap power, I don't want some outsider to come, take advantantage of that fact, and use so much power until the prices approach average power prices.
Hydroelectric plants usually require flooding huge areas of beautiful nature. People accept that because it's better than burning coal. But if people are just going to use it for something that doesn't help the local community at all, why bother destroying the local scenery?
There's more to the economy than just money; local governments often subsidize local companies if they think it's good for the locals even if it would be more profitable to move production overseas.
We don't need to find a way to make the "moral" thing more profitable. We can just make laws that prohibit the "amoral" thing. If we would let the market decide everything, why bother electing a government in the first place?