Any player should humble themselves when they're facing a team that pays them and makes them more famous, especially when that team is Real Madrid, which has historically boasted high-quality players, yet they still humble themselves to the team. So, Vinicius certainly shouldn't be arrogant toward Real Madrid, even though he has higher aspirations for Real Madrid, but that's not the way to go if he wants them to fulfill his desires. He must remain calm, especially since he already knows that not all Spaniards like him.
Players ought to be humble and rules abiding to the team they are playing for because the team pays them to offer such services so if any player feels he deserves some extra incentives playing for a team, it will only be best such players makes sure to make such requests in the manner he ought to and not acting up or behaving in a manner that the team will not like to condone because at a point the team can get tired of his excesses and decide to let him go even as a very brilliant and talented player that he is, he will still be allowed to go if they seee he may be threatening the progress of the team through his behavior as a response for his demands.