Agreed. Nobody starts/runs a business as potentially complex as a network with the expectation that they will ultimately fail, or with the expectation that they'll ever have to exercise some of the less pleasant clauses of their T&C's (like we don't get paid, you don't get paid).
The fact is one of the most critical aspects of running a network is risk management. Networks can live and die with their ability to manage risk. Smaller networks started by affiliates who think running a network is as simple as brokering offers and making themselves available on DP/BHW get a pretty rude awakening when the shit hits the fan and their obliviousness to this risk leads to massive cashflow issues. These networks typically just disappear without a trace a few months after they open because the owners really don't have much to lose - they can go back to being affiliates or back to their regular full-time jobs.
Larger networks that are fully aware of risk management know exactly what they are doing every step of the way. Contrary to popular belief, they are not blindly driven by greed. Sure, they want their companies to make as much money as possible, but their decision to extend $1M in credit to a rebill merchant (or whoever really) isn't done without fully weighing the rewards of bottom-line profit vs. the risks of non-payment by said merchant and being forced to take a loss or face the court of public opinion if/when they decide they'll exercise their "we didn't get paid, you don't get paid" clauses. Even something as simple as defending themselves on boards goes through a risk management decision.
These networks rarely die because the owners of these networks have a lot to lose. They could be answering to shareholders, they could have a significant amount of their personal equity tied into the network, they could be looking at their personal reputations being ruined. For that reason, they'll do whatever it takes to stay afloat. This includes making unpopular decisions. But make no mistake, these decisions aren't based on "let's fuck the affiliates". These decisions are made after carefully looking at all their options and selecting the one that has the best risk/reward outcome for them.