I'd say if it's used withoutwith judgement; governments after all uses censuses to plan schooling provision, for example - which seems sensible; whereas using statistical means to judge the value of scientific theories, or literature seems wrong-headed to me; though there maybe other ways in which this may be useful - for example trawling through law records, or gathering economic data.
Game theory, is used in economics, and it seems a useful explanatory schema in perhaps throwing some light on economics; but one can only judge this, if one already knows a something about economics.