In your post you contrasted human behavior in two shipwrecks:

“The New Scientist has argued that ‘on the slow-sinking Titanic … there was time for [the] social norm of giving priority to women and children to establish themselves’ whereas on the Lusitania where survivors were largely strong men between 16 and 35, ‘instinct and bodily strength dictated survival’.

A third once-famous example was referenced in the 2006 Yale Alumni magazine (http://www.yalealumnimagazine.com/issues/2006_05/old_yale.html, excerpted below:

In 1948, 12 years after he graduated from the Yale Divinity School, Clark Vandersall Poling’s name was carved in one of the marble tablets that line the walls of the war memorial adjacent to Woolsey Hall. Poling is among the 514 Yale alumni who died in World War II, and though his name is not well known today, his wartime sacrifice as one of the “Four Chaplains” was mourned throughout America in 1943. In February of that year, Poling and three other pastors—a rabbi, a Catholic priest, and a Methodist minister—were sailing for Greenland on the troop ship Dorchester when it was torpedoed. Without hesitation the clergymen gave their life jackets to four servicemen, and, praying together, the four chaplains went down with the ship. [snip]

One of the 226 survivors [out of 904 on board] was Engineer Grady Clark, who had been standing close to Chaplain Poling. Clark said: “They quieted the panic, forced men ‘frozen’ on the rail toward the boats or over the side, helped men adjust life jackets, and at last gave away their own.”

Clark spoke of Chaplain Poling’s contagious laugh, and continued, “I swam away from the ship and turned to watch. The flares now lighted everything. The bow came up high, and she slid under. The last I saw, the chaplains were up there praying for the safety of the men. They had done everything they could. I did not see them again.”

In December 1943, the Army awarded the Distinguished Service Cross to the families of each chaplain.