As to your experience you have to put things in perspective. The bible doesn't support tribunals. in fact Judicial matters should be in the public forum to begin with. Disputes in Israel were handled at the city gate. The were done in public so the judges would act fairly and be held accountable.
In what way is that mimic'd in the organization today. It's NOT! In fact it is the polar opposite. Elders are not held accountable.
For many the mere thought of a judicial trial (let's not soften it, it's a trial) puts them on the defensive. In fact the scriptures often read before there's any discussion are accusatory and put the person in a tough spot as they feel guilty before they begin.
There's not much with this process that is loving or transparent. It is setup in such a way that the only one held accountable is the accused.
So although you might have had some experiences where someone has been dishonest, is not the entire concept and practice of judicial trials dishonest?
Pot calling the kettle black.
As to people in general some are good some are bad. There are plenty bad in the organization they just tow the line so as not to be cast out. People are what they are unfortunately.