It is pointless attempting to save/assist one person if you are going to cause damage or injury to others. From the information you have given it sounds as though these are cases of poor airmanship. The pilots and crewman of these aircraft should have a good picture of what is going on around them. if there was a need to recover the survivor from the boat , then it would be prudent to direct the vessel to a location that is clear of other vessels etc. As for causing damage on the beach, again there is no emergency that requires you to place the public at risk by flying in this fashion.
