Yep, just because something is difficult doesn't mean it's valuable. E.g. a lot of art is extremely difficult to create but not desired by anyone other than the artist. The value is not proportional to the difficulty.

Likewise just because something is potentially worthwhile doesn't mean it's valuable in a specific instance. E.g. drinking water is required for survival and thus extremely worthwhile, but so cheap that restaurants give it away for free when you order anything else.