Even if you think Musk is not an engineer and just a 'marketeer' (which I disagree with), he still manages to attract the best engineers and manages to motivate them to build cool things that can inspire. This a unique skill he has. https://universumglobal.com/blog/google-apple-spacex-and-tesla-snag-top-spots-in-the-most-attractive-employers-in-the-united-states/