You're not alone in that, which speaks to the effort of your committee to have a thriving club in a higher division. With more teams comes a proportionally higher level of effort to keep the lights on and push ahead, after all.
The point GoR was making: you're in a a rugby area. The eastern fringe of Sydney is more heavily populated with rugby people. so the number and size of the clubs should be proportionally higher. And it is, when you look at the map of Subbies and Premier Clubs.
My club doesn't have the same challenge of Premier Rugby or large Subbies Rugby in the area.
Instead, I've got a dozen rugby league clubs who will pay guys $200 a game or more just to walk onto the field.
I'd say the effort and size of our Committee / Volunteer base to keep 2 teams on the field is proportionally equal to Lindfield's 5+ teams.
(Anecdote: I was out for a walk the other day in my Renegades training shirt, and a young couple were coming the other way. Struck up a conversation as he had a Bunnies training top on, and said he'd heard of us. After urging him to come to training, he asked what the game wage was
"Free beer and pizza - we're amateurs", was my reply).