Good that you see the difference. I would argue innovation is far more important. Electric lighting was invented 80 years before Edison. It could provide light for a few minutes.
Megapacks currently use prismatic lithium iron phosphate cells from China, not sure where the packs are assembled. Megapacks are assembled in their facility in Lathrop, CA. Expect cells/chemistries used to vary widely for Tesla Energy.
I don't like Elon's politics of late, but the board of Boeing should give him equity to reorg the company and then allow him to select a new board. His track record running engineering-focused companies speaks for itself.