When we think of disasters and the workplace, its usually in the context of a natural disater such as tornadoes, hurricanes or earthquakes- depending on where one is located. But these are actually the tip of the iceberg- which is a good analogy in fact. The iceberg that was struck by the Titanic would not be considered a "natural disaster" in the same way as a hurricane, but it was no less a disaster for the Titanic.
Because of the belief that the ship was unsinkable, less attention was given to preparing for such an event. Any instructions on how to abandon ship, don life vests, etc., were given tongue in cheek, if at all. Design and other interests were given precedence over providing sufficient life boats, primarily due to management perception that "it can't happen here."