The point is not that people don't want to encourage behavior that pays off in the end, it's that it takes alllinks in the chain to be vigilant about it to happen. Anywhere in the line between the the client company's CEO to the consultant company's developer if someone decides to cut corners because of time, cost or some other unknown reason, that will flow down through each subsequent level to the actual developers. There's probably five people in that chain minimum (including the developer, the client CEO, the consultancy CEO, and any managing coordinators), and any one of them can easily change this because of their own pressures. It's an inherently fragile system.