they do not receive a salary, but...

Most religious organisations are able to mobilise resources of skills and labour by appealing to the solidarity and religious sentiments of their believers, and the Baha’is are no exception to this. The people working at the Baha’i World Centre are all Baha’is (except some of the manual workers, who are paid locals), and they live and work quite isolated from Israeli society at large. The Baha’i group at the Baha’i World Centre constitutes a closed community, which also exhibits some utopian-communal ideals, similar to a convent or other religious commune. For example, the staff members serve a common cause, they do not receive a salary, but only a modest allowance, and the Baha’i World Centre provides them with almost all their necessities: housing, food, laundering, insurance, entertainment, even auto repairs and car washing. While working at the Baha’i World Centre, they do not receive private mail at their home addresses; all mail, even family letters, is sent to: Baha’i World Centre, P.O. Box 155, Haifa.

(Citizens of the World - A History and Sociology of the Baha’is from a Globalisation Perspective by Margit Warburg)