It's interesting how I've been seeing posts about how Steward-as-Picard exemplified goodness. Sure he was a really great actor, but he was... an actor, tasked to help bring to life a universe envisioned by Gene Roddenberry. And there's like nothing about the latter.
And there are 1000 other actors the world would have loved just as much reading the same script.
The characters you see on screen are a mix of the writing and the acting. In long-running shows like TNG, the writers pick up on how an actor plays their character, and it informs their writing. TNG is generally considered to have come into its full form only after Roddenberry’s involvement leveled off. It might have become a very different show with an actor other than Patrick Steward as Jean-Luc Picard.