Hey linguists and cognoscenti of the lingua anglica: In common usage, when you say that someone has been instrumental in getting a legislative bill adopted (for example), does it imply that this person has merely helped to have this bill adopted, or that he or she has played a crucial role in the matter? Dictionaries I have looked at seem to go for the first interpretation but, for some reason or another, I have the feeling that it should or could be the second one.
Not a life or death question; just curiosity. Thanks.