> If you own a company and someone wants to contract you for work, you start explaining how what the client says it needs is not necessary and how he can manage

> If you own a company and someone wants to contract you for work, you start explaining how what the client says it needs is not necessary and how he can manage with less than he demands? Absolutely, you don't just build the first thing that the client asks for. And certainly not as a single main deliverable.