Think about what kind of 'greatest achievement' actually exists for JJ2. I suppose the best thing possible is winning tournaments like JDC or JJ2WC. And then only the WC had clan based competition, I don't really see a high JDC position as an achievement for the whole clan the player belongs to, but just his/her individual skill. Maybe the inactive players need some more 'motivation' to 'power up' the clanbased games again?