in episode 25 the Fairy Tail guild is protecting one of their own members (Lucy) from getting kidnapped by the phantom guild, they are risking their lives, they would all prefer dying if necassery. Mira made her faint so they could take her to a secure hideout of theirs and when lucy woke up she said she couldnt just sit by doing nothing while her comrades were dying to protect her.
Isn't it the same with the 4. Great ninja war?? The kages decided to protect naruto instead of letting him fight, and naruto said the exact same thing?
Yet, Lucy didn't do anything in during Gajeel vs Natsu except gave Natsu plenty of fires.
OT: I'm not sure if my memories are correct.