With different generations comes different forms of communication. Yes there are still strong messages for young people. Many churches are moving to rock and roll as part of their music. The reason is very simple. This is what the young people listen to. Other organizations, entities and social groups are including rock and roll for that same reason.
Basic marketing/advertising directs that messages have to be targeted to the audience. If the message is meant for young people then rock and roll is probably the avenue the message should be delivered.
However, we must also recognize that the value or ethic of the message must equally be considered. Plant old rotten seeds and get bad harvests. Plant good seed and the harvest is plentiful.