Apple would agree with you. and the issue comes with the contracts to be able to sell the music and now the payments are addressed. if it is a firm amount of money per track/album then Apple might be able argue in their favor, at least until the current contract is up.
but if the contracts were written just right, then the record companies might have the means to demand the added money from Apple and Apple can't say no. thus the risk of operating at a loss.