This reminds me of how in the 18th century, captains in the Royal Navy wouldn't call to abandon ship because that would have career-ending consequences. So there were cases like HMS Tribune in 1797, where it is claimed that only 12 of the 240 seamen survived because the captain Scory Barker, even having ample time, was effectively prohibited from abandoning the vessel. Four survivors who escaped early were seen as mu…
Comparing going down with the ship to dying for a cause seems like a false equivalence. When a ship sinks, the outcome is more or less the same whether people are onboard or not: in either case the ship will sink. The only difference is whether or not the passengers / crew survive. Fighting for a cause, on the other hand, generally requires that people sacrifice themselves. If no one is willing to die, then the fight…
The more difficult question is when a ship is on the brink of sinking. Then, having people on board can make a difference: the extra weight can make it sink, or actions by those people (pumping, plugging holes, closing doors) can prevent it from sinking.
For the captain, the difficult thing is to figure out whether a ship is destined to sink or not.