How can you renumerate fairly?

What is fair. It is generally accepted in renumeration science: what you get back in proportion, to the contribution you have made. But what is that exact ratio. According to the Romans, justice was ‘’the constant and unceasing will to give what is due to everyone." Even if this principle is handled with care, a relatively reasonable financial reward can still give the appearance of dishonesty. Then morale drops and motivation stops. It is therefore appropriate not to allow remuneration to consist solely of financial substance. Money is perfectly measurable, but seldom the ultimate measure of efficient professional remuneration. We have lost the belief in medieval doctrine that there is a right reward for every work. Nowadays we accept that the market plays and that supply and demand are an essential part. That is why justice is nowadays often defined as: the perception within the limits of reasonableness that a remuneration falls within accepted norms. Money definitely has a number of positive functions in the reward process. These are the most important.