Christian Ethics To Business - A design engineer in a major

Christian Ethics To Business

A design engineer in a major automobile-company received 2 reports concerning engine fires and explosions which occurred in hot weather in the company’s popular economy car. At the time the engine of this model was approved and released for production, the engineer advised the plant that  he felt the carburetor and gas lines were constructed in such a way that under excessive heat conditions there could be a gas leak. At that time, the engineer argued for a modification which would have added about US $ 5000 to the cost of producing each engine, but this proposal was  turned down. He continued to argue for the modification and for special testing, but the standard  tests performed on the car did not indicate any danger, and the engineer was told to drop the issue. 

However, upon receiving the two reports, the engineer again pressed for special testing under  excessive heat conditions, and urged the company to warn the public and immediately recall all  the cars of this model. By this time however, such a recall would probably cost the company  between US $ 0.5M and US $ 1M, and the engineer was again told to mind his own business or he  would be fired. In the meantime, four more reports of engine fires came in from a desert area in  the North-Eastern region. The engineer was now convinced he was right.

To what extent does he owe loyalty to the company, where he has worked for 15 years and has 

been promoted several times?