It kinda annoys me to see people say "Elon revolutionized electric cars and space travel"

No. No he didn't.

Tesla took full advantage of economies of scale. If you mass produce an item, you can sell it for cheaper and still make a profit. Elon did not create Tesla, he bought it. https://en.m.wikipedia.org/wiki/History_of_Tesla,_Inc. So it's fair to argue that Tesla's idea was likely not Elon's idea. He just bankrolled it

SpaceX created a reusable rocket. However that's not the first time they were created, https://en.m.wikipedia.org/wiki/Reusable_launch_vehicle#:~:text=In%20the%201960s%20and%201970s,were%20reduced%20to%20prototype%20testing. So spaceX took an idea that had been proven as a proof of concept, productized it and... Took advantage of economies of scale, again.

Elon isn't a genius. He just has enough money and the right people who manage him to successfully pull off other people's ideas and take advantage of economies of scale.

Ps: to be faiiiiiir