I was mostly thinking that the customers / clients you have and services you have to offer can be largely dependent by people in positions of power where having the right connections and influence might be the key difference between a service or product being viable.
For example - although not related to NSO - something like operation Trojan Shield required both Australian and Lithuanian cooperation due to fourth amendment interpretations.
Having a zero day in such cases is only part of the work and everything beyond that might be very much dependant on the strings you can pull.
But I can also see the argument that that would be something the government can figure out after they buy the product or service, so maybe I'm wrong on that and it's less important than I thought.