A price that has nothing to do with costs is a monopoly rent; in a competitive market marginal prices are driven down to marginal economic costs by competition.
On the contrary. In case of a monopoly price is guaranteed to cover the costs. In a competitive market the price can be well below the costs. Case in point: Epic games store. They are burning money to carve out a market share. That's an example of price decoupled from the cost.
A price that has nothing to do with costs is a monopoly rent; in a competitive market marginal prices are driven down to marginal economic costs by competition.