WE HAVE BEEN SEDUCED INTO THINKING THAT RJ IS SOMEONE WITH THE WORLD AT HIS FINGERTIPS.  

It would be an easy MISTAKE:

to confuse that RJ seeks power --- with thinking that RJ is someone in a position of power

It's easy to imagine RJ as a cult leader, rich playboy, CBI insider, etc. -- BUT the truth about killers like RJ is that they are often unremarkable and overlooked, and subsequently in deep need of power.  Remember SJK Killer?  A total nerd, seemingly harmless and pretending to help out.  And real life BTK?  He didn't fit the image at all.  THAT'S the paradox.  They want power but they are NOT going to look like they have any.

THIS OMITS everyone on the List of 7 Suspects [that was fake anyway], as well as any other obviously powerful or arrogant person that Jane has come into contact with. 

A good question to ask:  WHO DOESN'T HOLD an obvious powerful position, who has been dismissed or overlooked by CBI [though not entirely discounted] -- and who we've seen to be both forgettable AND yet someone who needs to be heard?
 
ELL[HE]--IS--MARS