Unlike large NPOs that provide services directly to the disadvantaged, advocacy groups tend to be small and serve people only indirectly. In consequence, they are less visible and less sympathetic, which means they have far greater difficulty raising money.
相對於直接服務弱勢族群的大型 NPO 組織，因為看得到，容易引發同情，其餘小型的、非直接服務的倡議型團體，募款則困難重重。