If your analysis is based solely off YouTube interviews, I think your perspective on Sam’s capabilities and personality is going to be pretty surface level and uninteresting.
tech execs are trained to be toned down when in public and the camera is on them(so they don't say something that will make -ve headlines later).
Example:
Elon's recent biography shows that he swears a lot casually while working (as do many of us). You wouldn't glean that from any of his public interviews.