Brother Evangelist is a sheep just like the rest of us. If he gets proud, the Holy Spirit cannot convict him. There goes one source of correction. What's left is a Balaam's ass like me. A few dismissing words about me and that source is gone, too.
Organizations are like people.
We often cannot see what is wrong with our own behavior. So it is with groups in general. Insiders, particularly the leaders of a company, often cannot see their organization clearly. To improve they often hire outside consultants. You may have employees that have been overworked and under appreciated by their superiors, but who are afraid to say anything for fear of losing their jobs.