This is your problem with retention : " GE, GBG, GVG are not required, but encouraged because they yield rewards for guild and individuals. "
These are the fastest and frankly only way to build up a guild with any appreciable speed. Your leaders are not in a popularity contest , they are there to lead even when the decisions taken may be difficult or unpopular. Competent leadership listens and then acts applying their experience. Too many guilds try to be everything for everyone and turn out to be nothing for anyone.