They might save some obscure islands here and there. But in the grand scheme of things, they're really useless as fuck. It's been +12 years ever since Sabo got saved by Dragon, and they haven't done any noteworthy shit during all that time. Luffy in few months managed to fuck up both Enies Lobby and Impel Down and almost kill a celestial dragon
So Luffy and his small crew of rookies managed to do more damage to the World Government in few months than what the entire Revolutionary Army - including Dragon - have done in over a DECADE
So Luffy and his small crew of rookies managed to do more damage to the World Government in few months than what the entire Revolutionary Army - including Dragon - have done in over a DECADE