If it were only "the road":
View attachment 65371
This is just northwestern Ontario.
Actually, that initiative is already under way:
www.fortisontario.com
It's a lot easier to build and maintain a pole line than a year-round road.
The upfront cost would reduce costs in areas such as transportation, consumer goods and housing; however, I'm still not convinced there is a consensus amongst the communities for road connectivity, but stand to be corrected.
These FNTs are located in their various traditional territories. One challenge is they are now living a non-traditional lifestyle. Short of resource royalties and some level of employment, there is simply no economic basis for these communities without government support.