During WW2, the Captain of U-boat 156 sunk a passenger liner. He then immediately set about rescuing survivors, and began broadcasting his position and the humanitarian nature of his mission on all available channels. An American B-24 in the area began to attack, despite the Captain's pleas they were killing their own men and the U-boat was trying to save lives. Afterward, U-boats were explicitly ordered to never render humanitarian aid under any circumstances (the Laconia order). The B-24 pilots were given medals for bravery.

In 1757, the British admiral John Byng was executed for failing to sail his ships into a storm. The enemy was besieging a fort, and although Byng engage the enemy fleet he didn't pursue and annihilate them - heedless of the danger - and thereby the relief troops were unable to reach the fort before it fell. This was considered a capital offensive despite being sound strategy (the loss of the fort was bad, the loss of Byng's fleet would've been crippling) - making the right call got a man shot by firing squad.

These two incidents are always in my head when people discuss morality or honor or any such topics. The truth is "moral" for most people means nothing so much as "Did a thing I like" and immoral means "Did a thing I didn't like". That B-24 crew attacks the enemy, which is good and therefore moral - that it was a supremely cowardly and bloodthirsty thing is irrelevant.

It's just how people are, I suppose. Well, most people. Some are genuinely good eggs, and those are the ones to befriend.