If your team is Sherlock in week 6 is there any point in still trying to get a high number of league..

Usually not. You will already receive the Sherlock prizes at the end of the league. Members will also get the weekly reward if they earn at least 10 league ribbon points. You'd only need to earn high points if your team is trying to get one these rankings for a higher weekly reward:

#1 gets 25 pink star boxes

#2 gets 20 pink star boxes

#3 gets 18 pink star boxes

#4 gets 16 pink star boxes

#5 gets 14 pink star boxes

#6-10 get 12 pink star boxes

#11-50 get 10 pink star boxes

#51-100 get 12 compasses

#101-250 get 10 compasses

Teams ranked 251 and below will all receive 8 compasses.