Penrith chief executive Shane Richardson has led a chorus of opposition to a proposed salary cap increase, even though his National Rugby League club stands to benefit from its approval.

The Sydney Roosters, Bulldogs, Brisbane and St George Illawarra are the clubs who will push for an increase of up to $500,000 on the $3.25 million cap at next week's chief executives meeting in Sydney.

All those football clubs are heavily backed by their leagues clubs and would benefit enormously from an increased cap.

Penrith is in the same boat but Richardson said the game's powerbrokers and club officials should ensure any extra funds are ploughed into junior development.

"We're more financial than Eastern Suburbs," Richardson told AAP.

"But what I'm saying is sometimes you have to make decisions for the betterment of the game as a whole, not just for the betterment of only your club.

"I honestly believe an increase in the salary cap is not good for the game...the only people who are going to benefit from it are the top level players."

NRL boss David Gallop said he was interested to hear the views of the chief executives next week.

"What I'm saying is that it's a good issue to debate next week and if there were to be an increase, we'd have to make sure that we're also providing an appropriate level of funding to the grassroots of the game," he said.

Wests Tigers chief executive Steve Noyce, who noted the income generated by leagues club was stagnating, and Souths boss David Tapp agreed the game could not sustain an increase in the cap.

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