Bushy Eyebrow Partner: I think you're confusing contractors and consultants. Consultants should indeed focus primarily on clients interests (and sometimes to highlight where the client isn't aware of, or has incorrect interests in mind). If the clients interest is to get value for money for consultants' high rates (or as you say "working them as hard as possible"), then the consultant should indeed try to make sure that the client ends up getting that value for money. This is why consultants charge over double what contractors do. Some clients get this difference (and pay the rates), and others don't (and rely on contractors to do the minimum, look after their own interests, and to follow client's instructions blindly). If the client trusts you to do right by and protect their interests, including telling them no, or telling them a decision they are about to take is wrong, then this is a perfect foundation for a strong client relationship. Where's a contractor relationship is based on: "you pay be £, I do x".