There are plenty of reasons to have a strong organization irrespective of whether it does what it says it does.

  1. To silence valid criticism & gag public opinion. 
  2. To take advantage of a splintered population of
  insignificant and disorganized clusters and interest groups
  & gain legislative / political power.
  3. To steer discussion & policy directives toward
  boondoggle initiatives so that there is semblance of
  progress but very little to show in the way of actual
  positive outcomes - outcomes deemed not core to the said
  group's world outlook.
  4. To bully lawmakers into shaping public policies in the
  hopes of creating a moat so big, that it effectively
  shields said organization from any incursion, for decades
  to come.

Basically all organizations - in the current highly polarized atmosphere - want to concentrate power within themselves for use as currency for various objectives - whose motivations are not necessarily what they appear on the surface. No matter what the organization is, the more powerful it is the more of these things it engages in, by virtue of just being powerful.