Tearing some of Cayden Cailean's power away from him and using it to serve Pilar's guesses at Asmodeus's interests, and Pilar becoming the sort of person who could do that, will in general and in expectation lead to a world that's better off as Asmodeus sees it, than if Pilar doesn't do that.

Pilar would need to start moving on her own, making her own decisions, and thinking for herself, if she started being that kind of oracle.  Snack Service would still point her in directions sometimes, but Pilar would have to mostly take responsibility herself, including for things like weekly Lastwall spy sweeps.  Pilar wouldn't be guaranteed anymore that she was following Snack Service's directions that always served Asmodeus.

All Pilar gets told is that Pilar going down that whole path would, probably, on average, have promoted Asmodeus's interests in the end when it was all done.

Tearing some of Cayden Cailean's power away from Him and using it to serve Pilar's guesses at Asmodeus's interests, and Pilar becoming the sort of person who does that, will in general and in expectation lead to a world that's better off as Asmodeus sees it, than if Pilar doesn't do that.

Pilar would need to start moving on her own, making her own decisions, and thinking for herself, if she started being that kind of oracle.  Snack Service would still point her in directions sometimes, but Pilar would have to mostly take responsibility herself, including for things like weekly Lastwall spy sweeps.  Pilar wouldn't be guaranteed anymore that she was following Snack Service's directions that always served Asmodeus.

All Pilar gets told is that Pilar going down that whole path would, probably, on average, have promoted Asmodeus's interests in the end when it was all done.