Rules are prescriptions for how members of a group ought to or not to behave. They are specific and allow no discretion. In any group situation, and more so in the formal organization, rules become necessary "laws" for the benefit of the group as a whole, the individual within it, and the society in which the group operates. The behaviour of any one individual has profound effects on the welfare of others. The group therefore has a right, if for self interest alone, to influence individual behaviour through rules and laws.