Sao

The Spiral would surely feed on the fear and the suffering the Teds trapped in the Bastard's Box feel, so Tinky is the Lord who has to worry less about feeding the Fear, followed by Blinky thanks to Watcher World, and consequently he's the less compelled/influenced.

Tinky would be able to interact with The Spiral and Its parts, like the Distortion (ik Jon kinda destroyed It... But... I love It...), and thanks to that he's actually capable of connecting the Black and White to the normal world, but at the price of exposing his own home to the Fears.

His capacity of controlling time and space, however, is compromised because The Spiral has a tight grip on it, thanks to their link. If he lets It, It will melt everything in an unexplainable chaos and since he's basically trapped in the normal world, he (+siblings) would suffer with the humans the consequences.

He can't use his powers to fix The Spiral's shenanigans even if he wants to, or it would be extremely hard for him, like how Jon struggled when he destroyed Gerry's page because it meant losing knowledge. Time paradoxes are really appreciated by The Spiral, so when the Teds aren't enough, he can feed It that way.

(I know there aren't all the characters, have mercy, i'm studying for my finals)