I have read (somewhere, can't remember) that JMS intended to delve into the effect of the Alliance becoming a reality: with unintended consequences and unforeseen issues; including individual world's rights and the Rangers being seen as Enforcers rather than Peacekeepers. It's hinted at in Deconstruction; that not everyone remembers his 'reign' positively, and his intentions are not seen as benign.

The temptation to prefer order over chaos is always there.