I don't think a driver needs to explain to me how great he is. For him to say titles are not what matters is hysterical. Yes, he had a killer year, but let others praise you. You don't need to explain to the world why you are so great
He was just summing up his season, he could not win but he got the consolation to know that he gained a lot of respect this year. I think that the samurai thing is kind of a play, maybe at Ferrari they're brainwashing him to create the perfect racing machine!
And yes, when he says "I don't care about what people think of me in Germany" he means people like you, BUT
when he says "people huge me in the streets" he's reminding that he has a huge fanbase and that there are people (around 1,37 million only in twitter) who secretly support him