The leaders of MKO cult, as well as ,all other cult leaders try to convince the members that their organization’s belief is the best of the world and eventually they are superior to the other people because they are saved by their leaders and they can since then be the saviors of the world. Ann Singleton, the former member of the cult of Rajavi affirms this fact:” I though I was superior to the world .. I wanted to save the world.”
Howcultswork calls such phenomenon as the exclusivism in the mind control system of the cults. According to Howcultswork , the cults prevent the members from joining any other belief or ideology system. The membership in the cult matters.
cult leaders will tell you can only be "saved" (or can only be successful) in their organization alone. No other organization has the truth, all others miss the mark. So it is not the belief system that decides your future, but it the belief system AND your membership with that particular group.
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ANY GROUP WHICH SAYS YOU MUST BELONG TO THEIR ORGANIZATION TO BE SAVED IS ALMOST CERTAINLY A CULT
The cult leaders need to make you believe that there is no where else you can go and still be saved, and if you ever leave the "one true church" then you are going to hell. This is a fear based control mechanism designed to keep you in the cult. It also gives the cult leaders tremendous power over you. If you really believe that leaving the group equals leaving God (or means you are leaving your only chance to succeed in life), then you will obey the cult leaders even when you disagree with them instead of risking being kicked out of the group. Exclusivism is used as a threat, it controls your behavior through fear.
Note
Be very suspicious of any group that claims to be better than all the others. A religious group may say that other groups following the same religion are OK, but they are the ones who have a better grasp of the truth and they are superior to the rest. This is often just a subtle version of exclusivism.
Note
This is one of the practices that cults are often very deceptive about. For example, first off they may give you the impression that they think you are a true Christian, Buddhist or Muslim and it’s not until later that their true position is revealed.
Reference: Howcultswork
By Mazdak Parsi

psychologically and sometimes physically. The terrorist cult of MKO has been so successful to function the process of manipulative mind control on its members that the members are purely devoted to the cult leaders and prepared to commit any crime ( Ex. Self- immolations) along with the leaders’ objectives.
Borders/Médecins Sans Frontières (MSF) in PARIS and they submitted a letter regarding their concerns about psychological pressures and an imposed unlimited hunger strike upon the residents of ASHRAF garrison by PMOI leaders and operatives. 
well as his offensive attitude towards religiously inclined forces that can be considered as one of his main errors. In addition, his keeping silent on the events occurred in MKO and the issue of the Marxist wing manifesto for almost one and a half year led to the intensification of the challenges between Rajavi and non-Marxist forces.
refers to the case of leftist political cult of Stalinism that was developed as a result of indoctrinating individuals with a self-fabricated ideology:
of Mojahedin. The serious errors of Rajavi after the separation of Marxist wing following its declared manifesto was elaborated on and those aware of the course of events in that particular period of time were unanimous that the main mistake made by Rajavi was issuing his twelve-point statement that was considered to be the position taken by all non-Marxist Mojahedin about the schism. It stated that Mojahedin would consider the converted members as their strategic allies and openly revealed their opposition to religious members. It happened at a time when all MKO remnants except Rajavi insisted on reviewing and revising the organizational principles and ideological errors of MKO under the impact of Marxism. Karim Rastegar, an ex-member, elaborates on the impacts of this event saying that after the Marxist wing’s manifesto, Rajavi adopted a dual mannerism of keeping unwavering inclination to the left while role-played a devoted religious inside the prison.