71 We certainly rejoice over the fact that an ever increasing number of experts are being sent on development missions by private groups, bilateral associations and international organizations. These specialists must not "act as overlords, but as helpers and fellow workers.'' (59) The people of a country soon discover whether their new helpers are motivated by good will or not, whether they want to enhance human dignity or merely try out their special techniques. The expert's message will surely be rejected by these people if it is not inspired by brotherly love.
Source: Populorum Progressio (Vatican.va)