Lobbyists is exactly what I pay them for.
But other than that, a quarter million sounds huge, but that's not huge for a big, heavily-government-involved national non-profit.
For my own benefit, they orchestrate the classes and testing that I used to get my license, publish excellent reference materials, etc. I'm no longer in tornado country, but in earthquake country and a bigger city, the many different HAM activities are nice to know about.