Ok, the title might be a little misleading, but I had to choose one so... The question really is, how do you reach (meaning, how do you show them Christ) a group of people who think they have everything?
I asked a wizard this the other day and he said (and mind you, this may not be exactly what he said, but this is how I remember it), "You convince them that they have a need, then fill it."
I honestly don't really like that answer, but what do you people ("people" is my poor attempt and being gender non-specific) think?