Please educate your clients!

This extremely short post appeared following a meeting with a decision maker of a potential client. During the conversation I realized that this highly respected and well paid top manager knows nothing. He does not understand a single word in a sphere of his duties and should-be knowledge.
Dear vendors, developers and manufacturers, dealers, resellers and agents! Please educate your clients! Even though the deeper understanding can block or cancel the deal, it is much better working with a client that understands. It can save your company a fortune on support calls. Educated client knows what he is looking for. Maybe it is not your product. Maybe he does not need your solution at all. Face it.
Yes you can try to sell something that the client is not looking for. You may use terms that sound nice and attractive to ignorant ear, terms that are very popular but have nothing to do with your product. Be honest with yourselves.
I did not close the deal. I care about my company's reputation. Maybe later, when this client will stop using terms of “digital signature”, “active directory”, ”VPN”, “RSA”, “minutiae”, “templates” and other “magic” words not related to his needs, I will talk to him once again. Not now.

Maybe I am wrong. Maybe I shall not refuse selling to idiots. What do you think?