A perceived motive for the crimes was financial – the chief engineer that ordered the dumping off the coast of England told subordinate engineers that it cost too much to properly offload the waste in port and that the shore-side superintendent to whom he reported would not want to pay the expense.
Princess engineers on the Caribbean Princess indicated that the chief engineer responsible for the discharge on Aug. 26, 2013, was known as "broccino corto" (a person with short arms), an Italian expression for a cheap person whose arms are too short to reach his wallet. Some expressed the same opinion of the shore-side superintendent.
These paragraphs makes me wonder, in an era of tight economies, how rampant this practice and others like it are practiced for the same reasons and go undetected. I'm sure there are many ship owners that covet those with the same affliction in their organization.