Rules the auto industry
Tesla had a niche with electric cars. Every manufacturer in the world is building electric cars now, and they can actually handle production. Tesla might be worth more on paper, but they are a grain of sand in the car production world. In 2020 Tesla built 500k cars, GM alone built 6.8 million in that same time.
If anybody "rules" the auto industry, it's GM right now with the new Corvette. The car is a masterpiece of design and function. Starting at $60k, there isn't a better bang for your buck anywhere else in the world.
Elon is learning how the sausage is made when it comes to vehicle building and production. Getting investors and being worth billions is great, but you have to produce.