Unlike many superhero films where the goal is to "defeat" the villain, Peter chooses a path of . Encouraged by Aunt May, he decides to "cure" the villains rather than send them back to their respective universes to die.
This selfless goal leads to tragedy when the Green Goblin betrays Peter, resulting in the death of Aunt May.
Before she dies, May delivers the quintessential line: "With great power, there must also come great responsibility," finally providing the MCU’s Peter with his foundational moral compass. The Guidance of Three