One must always be connected to the Spiritual Master

In ISKCON, there are all varieties of devotees from neophytes to madhyama to uttama. It is important to associate with highly elevated souls at the same time careful in not finding fault with not so sincere souls who may be in a position of authority as well. 

Because in our heart, there is a tendency to find fault, that tendency is flared up when we see a factual discrepancy in the behavior of devotees. We will use it as a justification to criticize ISKCON and its authority. This does not mean we just have a blind eye to misdeeds. We have to report it to the concerned authorities and take shelter of Guru and Gauranga. In other words, good or bad we should practice the art of taking shelter unto Krishna amongst the dualities of this world even if it is in a devotional environment such as a temple because after-all ISKCON is also within this material world of duality and hence anytime anyone can fall victim to maya. 

We should not leave the institution just because we have a sour experience with local congregation or temple authorities. Humility,patience and shastric insights can alleviate some of the pain but by taking shelter of Krishna we can try to resolve unresolved conflicts within our self. 

Srila Prabhupada in one of his purports writes even if we find not so pure devotees, still we must stick to the Krishna Conscious Society.

Even if one thinks that there are many pseudo devotees or nondevotees in the Kṛṣṇa Consciousness Society, still one should stick to the Society; if one thinks the Society’s members are not pure devotees, one can keep direct company with the spiritual master, and if there is any doubt, one should consult the spiritual master. However, unless one follows the spiritual master’s instructions concerning the regulative principles and chanting and hearing the holy name of the Lord, one cannot become a pure devotee. 

- Purport by Srila Prabhupada CC Madhya Lila 19.157

Hare Krishna