Is this an oversight?

Yesterday I found a gold armor with a major expertise rune. I identified it and noticed that the value of the armor was 288. I then salvaged the rune, which is only worth 25 gold. Surely thats a mistake? I'm gonna give the rune to someone in my guild, so I'm not worried about the money, I just think it was odd.

Most items in guild wars will salvage into an amount of material that is actually worth more then the weapon. We financed our hall by salvaging everything in sight, getting more value from the material then the item (4 wood for a 20 gold bow). It seems that anet deliberately deflated the value of basic items to encourage salvaging and trading, so why this oversight with runes?

I personally like the rune trader and dont want this to become a flame war about the trader, but they fixed crafting material so that the merchant and material trader share a minimum value of 3 gold for commons, whereas before you got all sorts of strange values.

I could be wrong here, but I think that runes, crafting materials, dyes and upgrades always show as a default low value because the prices fluctuate. a steel ingot shows as 30 gold, but at the trader you can sell one for 250+

Still, at the rune trader, that major rune wouldn't be worth crap

I often dont bother salvaging most runes I id mainly because they are worth less to sell salvaged than unsalvaged(ie minor runes and some majors even a few sups are pretty worthless salvaged)