I think the point is that those are the clients you don't want, so you encourage them to select themselves out of working with you. The fact that it might be bad for their own business is not relevant to you as a consultant.
I think it's normal for non-technical people to have no idea of how things work and of what to expect. It's our responsibility to communicate. And, within reason, theirs to listen.
I think it's normal for non-technical people to have no idea of how things work and of what to expect. It's our responsibility to communicate. And, within reason, theirs to listen.