Provide an environment where those talented engineers could accomplish something no other environment allowed them to. It's not like there aren't talented people at Boeing or Lockheed and it's not like those talented people just came out of thin air, it takes amazing leadership and a strong vision to bring talented people together to accomplish something that to this day no other rocket company is still capable of doing.

There are probably a lot of great leaders and managers at SpaceX.

Even if Musk were nothing but hype (and I think he deserves a bit more credit than that), that very hype appears to have been a decisive factor in solving the chicken-and-egg problem of electric car proliferation needing charger networks, and charger networks needing electric car proliferation.

So I would credit him with at least that accomplishment.