Because as I said. I just joined the game and didn't realize the value of players. Doesn't this seem a little unfair?
It's unfortunate, but I don't think it's unfair. Regardless of what you or I think, though, that's what the rule is and I doubt it will ever change.
Most players on the transfer list have a little blurb that says that the going rate for players like them is. The comparisons aren't perfect, but they're generally decent and should give you a good idea of what you're dealing with.