Think about it realistically. Last month, you got about 70k total views. From what you've written here before, I'm going to guess that your earnings are around $70 for that month. Am I close? With a network taking 20-30% of those earnings, that means their take is $14-21. How much time do you think they put into selling ads for channel if they payoff for them is $14-21 per month? Chances are no one is selling ads for your channel. If you're lucky, there are similar channels in your network and you are placed in a vertical with them so that your views are aggregated and ads sold for that vertical trickle down to you. In reality, the majority of the ads on your videos are probably obtained via auction and you're not doing any better than you would on adsense.
The same goes for someone getting 10-20x your monthly views. Even at 1 million views per month, it's unlikely that a network would dedicate the time to sell ads specifically for that channel. There's simply not enough income generated to justify the time.