Won't address SpaceX though I know people there, but I too used to be on a track with an emphasis on individual accomplishment (academic mathematician) -- a lot

Won't address SpaceX though I know people there, but I too used to be on a track with an emphasis on individual accomplishment (academic mathematician) -- a lot about single-handed delivery. Sometime in my late 30s I realized that unfortunately, haha, the most impactful accomplishments are team efforts. To do big work, I realized I should find the right team. I am still working out what this means for my own career, but it's a huge change in mindset. And I'm working at a large, old-ish corporation now, and I think we are slowly & painfully changing how something very practical gets done.