It is plain that the point of view which inspires the above argument is at variance with the beliefs that are behind the movement for wage standardization. The argument accords no validity to the belief that group unity and group aims deserve recognition in the settlement of wages. The doctrine of standardization on the contrary represents this belief, and sets groups standards above the existence of minor difference in the work performed by the group. The practical consequences of any wage policy which gave full recognition to these minor differences must also be weighed. These have been vigorously stated, for the case of railway labor, by Mr. Stockett. "... The employees maintain that the varying physical and traffic conditions in the different roads should not constitute a basis for the payment of various rates. It may be true, they hold, that physical conditions and traffic peculiarities differ as between different roads, but it would be impossible to determine a separate rate of pay for each special condition. In the course of development of the railways conditions are always changing. Grades may be leveled, additional tracks laid, curves straightened, passenger and freight densities may differ from year to year and from day to day. The attempt to determine the proper rates for each different condition and to change them as conditions change, the employees assert, is obviously absurd. The plan of fixing a standard rate governing an entire district may be illogical and its basis arbitrary, but it is deemed the best devised and does substantial justice in a broader sense than any other system."[90] Cases may arise, indeed, where the difference in the character of the work performed really means that the same name covers two relatively distinct occupations, and two or more quite different classes of wage earners. Such cases are probably rare. In circumstances where the constant differences between the character of the work performed by workers is relatively great, it will usually be found that they are distinguished into different groups.[91] It is a question of degree, of course. And if the existing distinctions do not fit the facts, those distinctions should be changed.[92] In unorganized industries, it will sometimes be found that the classification of occupations is very defective. If wage standardization were to be introduced into those industries, it would be found necessary to standardize occupations first. Such was the task undertaken, for example, by the War Labor Board in the Worthington Pump and Machinery case.[93]