Good luck developing anybody to NRL standard then...
Any athlete with any talent will be poached by the AFL, ARU, etc, because without the NRL clubs (and the resources they have) to convince them that there's potentially a career in RL for them they'll take the money elsewhere.
BTW, the only reason that the two most successful NRL club's have few juniors is because they spend their money (and then some...) poaching them from other clubs instead of developing their own, and because of the precedent that they have set more clubs are starting to give up on junior development in favour of poaching, which in the long term is going to lead to their being less juniors and eventually less players.