Whitebeard's speech is definitely fictionally significant. It can reveal his character, motivations, and influence the plot in meaningful ways. It might also stir emotions among the characters and the audience.
Well, he might become more protective. Just like Whitebeard who was extremely protective of his crew, Naruto could start showing that same level of protectiveness towards his friends and the village. He might be more willing to use his power to shield them from any harm.
Well, the Gangsta manga ends with a mix of closure and ambiguity. Some characters get the resolutions they deserve, but there are still elements that make you think and wonder about the future.