Owners of the CMS get the revenue report in their analytics. If they shared this with their network everyone would see the entire networks revenue. I know this because of a CMS error enabled us to see every subnetwork under our parent network. All revenue, everything. I just was mentioning it because your post said:
So even if you didnt agree with the entire statement you did agree with at least a portion nullifying your percentage, at least by your own logic.
This all has to do with revenue visibility, because the owner of the CMS can share it all doesn't mean they should share it all. It is full of sensitive data that the average user, even the subnetwork probably should not know. That is why they make dashboards to share it with their users. I get the feeling you are saying all networks steal and that is why they hide it. When in fact, they are just protecting their corporate financials from public eyes. These are, for the most part not public corporations, meaning they are under no premise that they must share their financial data with the world. If a network does not even share your revenue then yes, they are probably doing nefarious things with it. But if they share the data, and it is the agreed upon % less than what your YouTube dashboard shows then they are being transparent.
Average users are ignorant to the workings of CMS and the breakdown of the percentages. Imagine if they saw that channel X that they deem to be inferior to theirs received a higher % payout. Maybe channel X has a better contract, whatever. The point is that Average YouTuber would become upset and feel cheated, maybe make a video or 2 discussing what was made and why they were being stolen from. There are many variables involved with CPM and one person may make more than another due to these variables. It is best that each person not be able to see the other person's earnings.
I hope this clarified it for you a bit better.