I don't even think the JLA should exist let alone be given any authority to do anything ("for") anyone else. The "heroes" of the DCU have a real problem understanding what the words "mandate" (or lack thereof) and "sovereignty" mean.
The only reason I'd ever appreciate the presence of the JLA as a book is for political satire and its allegory to the UN. However, Batman should never ever be apart of it.
In any case, that's an excellent point.
