After having seen Sanji’s backstory origins, his line “give up your ambition and live” to Zoro when he is fighting Hawkeye is even more preposterous because not even Sanji would take that advice, as made evident by his actions to try to save Zeff and everyone else. It’s a bit of a “do what I say, not what I do” type scenario because Sanji genuinely cares about these new people he just met, just as he cares for everyone, but does not recognize that they have their own unending desires for success just the same as he does. This story arc is ultimately Sanji learning that the Straw Hats are just like him with complete confidence in their goals, and that shared drive is what bonds them as a crew. Real recognize real I think is the technical term, when you meet someone and instantly feel on the same vibe & wavelength as they are.
The shit-talking between Luffy & Krieg is almost the exact opposite. In a certain sense, the two adversaries see each other as a more or less serious rival, and even though they both have faith in their own victories, the back & forth insults & mockery betray a mild fear, as in one would not speak as such to, say, an ant they were squashing with their boot without a hint of irony. The verbal interactions here not only serve as attempts to squash each other’s morale but also to embarrass them in front of their respective squads. Luffy calling the spear a “toy” belittles Krieg’s use of technology and disrespects his whole crew who trust and believe in their captain’s invulnerability. Krieg calling Luffy a “monkey” is intended to dehumanize Luffy as less than human & incapable of advanced thought ot skill level, but falls short as Luffy makes monkey noises back at him. Krieg shouting “foolish pride is all you got” is an example of an accusation being a confession because, in that moment just before his own armor shatters to bits & pieces, he is still foolishly full of pride & confidence.
Seeing Gin still somewhat loyal to the essence of Krieg’s passion is somewhat similar to Sanji & Zeff. Gin served under Krieg for many years, just as Sanji served under Zeff, and both mentors instilled much of their own culture & beliefs in their respective proteges. Just as Sanji dreams of discovering the All Blue, Gin still wants to find the Grand Line, which he admits is silly and only because of Krieg, but it is his dream nonetheless, and one cannot just change the dreams they hold in their heart. Seeing both sides of this same narrative in the wildly different characters is quite compelling & satisfying to behold.
Last note, I am shocked, shocked I tell you, that Nami was apparently not planning to return the ship to the Straw Hats, but of course her heart tells her she absolutely should find them again. Although she is a competent sailor in her own rite, easily controlling the large ship herself without any crew at all, her emotional need for their companionship is surprising even to her. She clearly has experienced traumatic events in her life, likely abandonment, and copes with this by not becoming too attached to anyone, struggling on her own, and only relying on herself to get by without meaningful connection to other humans. In fact, she seems completely capable to take care of herself and get herself out of any trouble she encounters, but humans are social creatures and regardless of her financial success, her spirit longs to be with her new friends.