One thing that comes immediately to mind is desalination plants for abundant fresh water in any location reasonably close to the ocean (i.e. California, much of the middle east, India, China, Africa, etc). The predicted future "water wars" never occurring will be almost as large a benefit as anything else. This will devastate the oil industry and completely shake up the auto industry as Tesla takes over the world. Space travel and even intra-planetary travel on Earth will be easier with gigantic nuclear powered jets that can fly between any two spots on Earth without refueling. The prices of cloud computing will plummet as electricity becomes cheap. There are probably a million other things that no one has thought of yet.
These are good insights!
:)