You are correct that intrinsic value is very vague. That wikipedia article, for example, is incorrect if you apply a strict definition of intrinsic value. Since

You are correct that intrinsic value is very vague. That wikipedia article, for example, is incorrect if you apply a strict definition of intrinsic value. Since all currency value is essentially subjective, all fiat currencies / digital currencies are devoid of intrinsic value. The value from satisfying legal requirements is extrinsic.