Every car company is working on electrics, and they have been for quite a while. The limitations were battery technology and cost, and battery technology with laptops and cell phones made electric cars practical.
NASA was talking about fostering commercial space launch companies before SpaceX was founded, and the two of them have been in close cooperation (other commercial companies too of course). If SpaceX didn't exist, that strong partnership would have existed with a different company but would likely look similar.
There's a tendency to think that the world would be different without "revolutionary" people or companies, but usually what ends up happening is just being at the right place at the right time. Excellence is required to succeed, but take one specific revolutionary out of the picture and another would have taken their place.
Einstein is a great example of this. A brilliant man, no doubt, but he is famous for discovering things which were ripe for discovery. The pieces were all in place waiting for someone to put them together. Doing so, and before anyone else, was an accomplishment, but he wasn't unique in his ability to make things happen, he was just first. Like a marathon, somebody always finishes first but there are many others running behind them.