Sort of.
It ties into his biggest issue- insecurity. He can't handle the idea that anyone might be considered better than him. He has a constant chip on his shoulder, which has an upside (the insane level of effort) and a downside (the often horrible decision making and shot selection).
Michael Jordan in his third season went for 37.1 ppg while taking 27.8 shots per game. His team went 40-42. He wisely decided that he didn't like that, and never again was he such a one-man show. He developed enough ego security, probably based in large part on his popularity, to not worry as much about putting up the biggest numbers he possibly could. Westbrook, OTOH, has always seemed to aspire to have the type of individual season that Jordan had in 86-87 (Or Kobe had the year after Shaq left), pretty much heedless of what that might mean for his team.
The guys who get EVERYTHING in their NBA careers- meaning individual and team greatness- almost invariably sacrifice at least a little bit of their individual brilliance in order to create more team cohesiveness. Westbrook has shown almost no inclination to do that. And yeah, that's a big part of why he no longer has Kevin Durant as a teammate, and it will be a huge part of his legacy.