I have skimmed through some of the thread and it is an interesting topic.
First of all the concept of "giving a message" or sermon implies that one person is speaking to an audience. That is ok sometimes and in that case, it is appropriate to consider your audience in your "message". For example, if one is teaching a group of high school young people, one would give examples that they would understand. I work with the high school young people with our church and we often use visual examples to help get the point across, but when doing that, we do need to be careful that they will remember the point that we are trying to get across and not just our example. For example, one time a brother brought in a chicken and an egg that it had laid and I don't remember what the point was that he was trying to make anymore, I just remember that he brought in a live chicken that was his children's pet.
So, you don't want your "relevance" to outshine the imparting of Christ and the message that you are trying to get across.