You really hate and despise that guy, don't you? I guess this is driven by Tesla. People are less dismissive about Musk if they concentrate on SpaceX and not Tesla.

Like it or not, Musk has a talent for attracting young talented engineers and giving them a huge playground to show what they can do. That is the main reason why SpaceX took off so massively, not any shouting to get things done (everyone can do that, but successful space startups are rare, so it isn't an obvious path to success). SpaceX engineers are allowed to have some initiative and aren't kept in a narrow corridor set up by typical corporate bureaucracy.

Contrast this to Bezos, arguably a very strict businessman who used to be much richer than Musk - several orders of magnitude, in fact. Bezos isn't any softer than Musk on his employees, arguably even harder; less shouting, but more pressure. But Blue Origin is a snail compared to SpaceX, even though it was founded 2 years earlier. They have enough money, but they have a problem attracting engineering talent and retaining it.