Excellent point about organizations run by the Quakers especially, Bill D. Quaker organizations, along with Catholic Relief Services (though not Catholic Charities, a much more conservative charitable organization than Catholic Relief Services), are on the top-rated lists for their charitable work, and rarely are accused of evangelizing and proselytizing.

Though I do have some Native American friends who would argue that the Quakers historically were fairly brutal when "civilizing" them. That said, one of my best friends, a Native American woman, has served on AFSC's national board for years.