As costs are sacrificed values it should become clear that cost only occurs when the decision to make the sacrifice has been enacted. Once that happens, the cost is sunk , it is irretrievable and it is ephemeral. Costs are therefore displaced values. In fact, neoclassical economics is schizophrenic when it comes to cost, values and prices. This dichotomy is totally untenable.
Utility always determines price which in turn determines costs.
Finally, we should bear in mind that commonsense thinking, though absolutely essential for everyday living, is totally unsuited for scientific discourse.