If you feel those aspects deserve greater attention from management, draw up a comprehensive map of how the various components fit together, showing the gaps that must be filled in. At that point you can talk about how important Perl is to the project.
Frankly, it might be better to just keep quiet about Perl. If management becomes aware that massive amounts of coding is being used, there's the risk that some PHB will say, "Hmm... We should be doing that in Java."
Sometimes, the only thing worse than a manager who doesn't know what you do is one who does.