Randy,
I rejoined BOW a couple of years ago after a hiatus. In years past, I was Treasurer and Vice President. I was also on the board of the Wyoming Wildlife Assoc for many years. I was a Regular member of PBS, but dropped that after several years of seeing little besides the magazine for my money. I am a member of Compton's, and recently joined Backcountry Hunters and Anglers. I have been an NRA member for many years.
My years of working with the Wy Wildlife Assoc pretty much burned me out; I saw a lot of what you talk about, that is, a few people doing the majority of the work, and a bunch of people bitching. After many years, I finally decided that I would continue membership in a few organizations, and let other folks do the heavy lifting. I felt that I had somewhat paid my dues.
I still keep up with state legislation, and contact my representatives about hunting and conservation matters, but I am done sitting on boards.