In a word fear
The organization gives elders the power to be detective, jury and judge in people's private lives and this inevitably leads to abuse. Many publishers are willing to put others down to either climb the ladder or just make themselves feel better because the reality is that very few can live up to the org's rules and as a result feel worthless.
Also many elders are all too willing to scapegoat publishers because they're terrified of losing their position.
In my opinion many congregations are one big fear factory.