A long-time friend of mine told me something that amused me. The church that he attends was looking for a mail hosting solution. Being a technologist, he suggested Google Apps as it's free and thus cost-saving for the church.
Oh no, Gmail? No, no ... we should not use Gmail. It indexes the emails that are in our mailboxes. Others might accidentially read our emails if they search for them!
Sometimes, it's hard to explain to the layman how high-tech innovation like Gmail works.
On a more serious note, we being technologists should try our best to explain technology in simpler term. Otherwise, customers see no value in spending with us.