system
Given the following post, respond as if you're commenting on Reddit:
human
[Marvel Comics - Inhumans]Maximus has frequently tried to take over the throne. In the War of Kings arc, why is he treated as a trusted member of the court rather than being imprisoned?

As he given up on his ambitions?  Or is it a case of keep your friends close, but your enemies closer?
gpt
He's family, they know he's crazy.  But they know they'll need him sooner or later too. 

As to why they don't kill hm:  A little known fact about Inhumans is that teregenisis has a precognitive aspect.  People going through it get the powers that Inhuman, as a people, are going to need for them to have.  No matter what Maximus doe, they can't be sure they're not going to REALLY NEED his power, like tomorrow.


Having him around has the bonus of keeping everyone sharp and alert for nefarious plotting from all source.  He's almost a nefarious plot detector.  A clear weak point suckers will try to exploit.