The stronger the common interest in accurate signaling, the higher the opportunity cost of doing something else, which is sufficient for an economic differential signaling cost, though not necessarily an evolutionary one; in some cases where the expected value of honesty far exceeds the expected value of dishonesty we may still want to prevent dishonest behavior from being selected for too fast to reach the payoff.
The stronger the common interest in accurate signaling, the higher the opportunity cost of doing something else, which is sufficient for an economic differential signaling cost, though not necessarily an evolutionary one; in some cases where the expected value of honesty far exceeds the expected value of dishonesty we may still want to prevent dishonest behavior from being selected for too fast to reach the payoff.