Rush
Oh how glad I was when James beat the crap out of that journalist
Even if it doesn't seem like it, both sides teaches you very important life lessons.
On the one hand, where we saw Lauda's career, it showcases that even in the worst possible situation you can find yourself in, you should never give up, but it also teaches us to not underestimate the capabilities of other competitors.
On the other hand, James life portrayed a short-lived career, due to him (James) not being consistent or engaged to the sport as much as Lauda (this is also why he didn't listen to Niki's advice in the end). By that, it passed a message to all the viewers: that to truly have the ability to win, you need to rely on yourself and not on the possibilities of others failing (like in the last race). Also it embraced living on your full potential, trying new things, and reject the traditional life (marriage etc).
Lastly, Niki and James have many differences between each other, but one thing in common; they are both champions. Their rivalry might have been intense, but neither of them diminished their respect for each other