This is one of the short comings of club life as you know all to well.
The old club here was a "super club" by that I mean, it had just over 100 registered and fee paying divers (on top of social members) We had 4 x 30' boats of our own, 3 of which were generally out each weekend. There was something for everyone, with West coast Wrecks, East Coast reefs and Deep wrecks for the Techies and teh Northern Musandam with currents and pelagics (accessed on day or weekend club charters).
Looking at the records from 2013 -2015 we were averaging 2500-3000 man dives per year. We had our own clubhouse and compressor too. We turned over approx £100k per year, and had a surplus in the bank of just over £200k
Yet with all that tryign to get people moved on through training (remember we can diver year round wind permitting.) We had a surplus of instructors but getting them to give up their time was near impossible. Indeed getting people to take their turn with compressor, and bar duty, assisting with boat maintenance and havign people prepared to tow was a constant challenge. It always came down to a few. SD and DL took far too long for most people (nepotism was alive and well though)
By 2018 after a series of unconnected events the club was on its knees and now has approx 10 diving members and has depleted all its reserves, with one of the biggest reasons being internal politics where lots of people (myself included) decided it was no longer fun nor enjoyable and go commercial, where diving is fun, and easy (no more washing boats) and you're no longer facing the constant bickering and backbiting on boats each week.