"I've invented a circuit for the brain that allows one to switch between two states of consciousness, akin to a split personality."
Vegapunk wanted to use this to save Kuma.
But, he couldn't and had to settle for putting it in the Seraphim.
This is why the Seraphim are capable of ignoring orders, unlike regular Pacifista.
We also see this when S-Snake simping for Luffy overrides her orders from York.
The Seraphim have a command hierarchy, obviously, BUT they can override those commands if they go against their own beliefs.