Beyond power levels, what narrative themes are explored when Spider-Man enters the 'Cosmic Comics Spider-Man Tier'?

Beyond raw power, these stories often explore themes of responsibility on a grand scale, the corrupting influence of power, the burden of protecting entire universes, and the potential for even a hero like Spider-Man to lose himself in the face of overwhelming cosmic forces. They challenge his core values and test his limits in ways that street-level stories rarely do.