I think GPA is a better measure of "I can work inside a system and play by its rules"
Does having a high GPA indicate that this is what the person was trying to prove? Does it even suggest that following rules was the motivator that got them where they are? As I pointed out in my earlier comment, maybe the graduate's GPA was high due to motivations that had very little to do directly with wanting to achieve a high GPA or wanting to please other people.
The meaning is ambiguous; as are the meanings of everything someone might rely on to assess someone's ability. You need context to figure out what each individual indicator means, and this includes the GPA; it might mean absolutely nothing, or it might be the thing that pulls two or three other indicators out of ambiguity and makes the true ability of the person become more believable.
Does having a high GPA indicate that this is what the person was trying to prove? Does it even suggest that following rules was the motivator that got them where they are? As I pointed out in my earlier comment, maybe the graduate's GPA was high due to motivations that had very little to do directly with wanting to achieve a high GPA or wanting to please other people.
The meaning is ambiguous; as are the meanings of everything someone might rely on to assess someone's ability. You need context to figure out what each individual indicator means, and this includes the GPA; it might mean absolutely nothing, or it might be the thing that pulls two or three other indicators out of ambiguity and makes the true ability of the person become more believable.