I am sorry but you are completely wrong here dear. If science was the reason for the boat, then  probably science contributed to the good the boat was doing but also to the bad. And what has philosophy to do with worldly mischances? Has any philosopher in the world ever saved anyone from a natural disaster?

Why was he selfish? The two educated people were educated fools since they, with all their so called knowledge, did not realize it it was against principles to belittle someone just because he did not have the knowledge of what they had.

The poor boatsman only informed them that they were going to die because they did not know how to swim. He did not himself know for sure if he could be saved. Do you think  he should have saved the two people? Do you think it is humanly possible to do that in such a situation?