The Final War Arc in My Hero Academia challenges All Might's belief that one person can be the Symbol of Peace. Deku's struggle against All For One shows that cooperation is necessary to face evil. All Might's desire to be a solo symbol caused society to rely too much on him, leading to the rise of villains like All For One. The Hero Rankings system and intense competition bred by All Might's popularity corrupted Hero Society. Class 1-A shows that working together is more effective than individual heroism. As they fight alongside Deku against All For One, a new era of cooperation in Hero Society is emerging. The concept of a single Symbol of Peace is flawed, and a new generation of heroes must work together for the greater good. My Hero Academia challenges traditional hero ideals, paving the way for a more cooperative and just society.