If a guy is selling sandwiches on the street for $1 million and a hungry Jeff Bezos happens to wander by and purchase one, the sandwiches still aren't worth $1 million.
Well, that's because 'worth' is ill-defined on its own. The 'worth' of that sandwich could be any of "last clearing price", "current ask", "current bid", or any other metric you choose.
So the sandwich isn't worth a million but it isn't worth any sum because 'worth' isn't a concept on its own.
So the sandwich isn't worth a million but it isn't worth any sum because 'worth' isn't a concept on its own.