The Legal Framework for Maritime Assistance Wages
The fundamental principle of international and Dutch maritime, port, and commercial law is clear: assistance must be rewarded. This principle is enshrined in the 1989 London Convention on Assistance, which has been implemented in the Netherlands in Book 8 of the Civil Code. The idea behind this is that skippers and rescuers should not hesitate to intervene in dangerous situations at sea for fear that their efforts will go unrewarded.
Whether the assistance is provided by a professional salvage operator or by a ship that happens to be passing by makes no difference in principle.