The members do, in fact tell the leadership what to do.
They do in fact...don't. The do in fact are mandated to pay dues, to support causes they may not support in any way. They are told what they're going to support, and just shut up, because they know better
Unions, like the NAACP, were once absolutely beneficial and well intentioned. But years of apparent ability for control, have mutated those organisations simply into massive Democrat PAC's, who care more about their own power & growing their #'s, than actually fighting for American workers or African Americans