"Habituation to bargaining and to the competitive principles of business necessarily brings it about that pecuniary standards of efficiency invade (contaminate) the sense of workmanship; so that work, workmen, equipment and products come to be rated on a scale of money values, which has only a circuitous and often only a putative relation to their workmanlike efficiency or their serviceability. Those occupations and those aptitudes that yield good returns in terms of price are reputed valuable and commendable, — the accepted test of success, and even of serviceability, being the gains acquired. Workmanship comes to be confused with salesmanship, until tact, effrontery and prevarication have come to serve as a standard of efficiency, and unearned gain is accepted as the measure of productiveness."