Here's why:
* Walton's ambition is fueled by his own desires: Captain Walton is driven by his ambition to explore the Arctic and discover new lands. Victor Frankenstein's story, while fascinating, serves as a cautionary tale and a warning against the dangers of unchecked ambition. It does not directly benefit Walton's exploration.
* Walton's own tragedy mirrors Frankenstein's: Both Walton and Frankenstein are consumed by their ambitions, leading to tragic consequences. Walton is ultimately forced to abandon his quest for the North Pole due to the dangers he encounters, mirroring Frankenstein's own tragic fate.
* Frankenstein's story is a warning: Victor's story serves as a powerful warning to Walton, highlighting the dangers of exceeding human limitations and playing God. It serves as a deterrent rather than a benefit to Walton's endeavors.
While Walton gains valuable knowledge and understanding from listening to Frankenstein's story, it ultimately serves as a cautionary tale rather than a direct benefit to his own exploration. The story reminds him of the consequences of unchecked ambition and the importance of prioritizing human connection over personal glory.