I dislike those dictionary definitions, because they are really aberrations of the word.
A myth is a story that has important meanings.
That people say... the myth is not true, as in to say that the myth is not valuable, is the aberration.
I agree that there is nothing with intrinsic value in itself.
There is nothing that can be used as a intrinsic store of wealth.
So, i like cryptos because it doesn't tie up any precious physical resources while being money.