Boeing Airplane Co. contracted with Pittsburgh- Des Moines Steel Co. for the latter to construct a supersonic

wind tunnel. R.H. Freitag Manufacturing Co. sold materials to York- Gillespie Co., which subcontracted to do part

of the work. To persuade Freitag to keep supplying materials on credit, Boeing and the principal contractor both

assured Freitag that he would be paid. When Freitag was not paid by the subcontractor, he sued Boeing and the

contractor. They defended on the ground that the assurances given Freitag were not written. Decide. What ethical

values are involved?