Spencer Leniu says the next Rugby League World Cup's US venues, including Utah and Hawaii, highlight Pacific communities' value to the international game.
The incoming Parramatta Eels forward argued on Instagram that Pacific nations helped carry the tournament but received far less than Australia's players.
"Let's be honest, the little nations carried this WC. Yet we are payed 850 a game to the Aussies 30/40k for the tournament."
He cited Samoa-Tonga as a triple-header, saying Pacific supporters filled stadiums and created an atmosphere of pride and passion.
Leniu said their commitment should not be used to overlook fair compensation, particularly when Polynesian communities could help grow the game in the United States.
"I'll use my voice and platform to push for change, because the next gen deserves it."
His remarks followed a contentious end to his campaign, when he was sin-binned for dissent towards the referee at halftime during Samoa's match.
The charge was due to be heard Tuesday evening; if found guilty, he faced a ban of up to three matches, potentially including Parramatta's opening games.