Titanic vs. Thames Turbos

Cold Spring Shops considers the fate of second and third class passengers on the Titanic and wonders:

Did steerage fares trade at a discount that reflected a somewhat higher probability of drowning in a shipwreck account the first- and second-class passengers had first crack at the lifeboats? (Anybody remember the camp song with the stanza that ends "So they sent them down below/where they were the first to go/It was sad when the great ship went down?" I am collecting variants of the chorus. So far I have "husbands and wives, little children lost their lives," "uncles and aunts, little babies wet their pants," and "fishies and turtles, little ladies lost their girdles." Other contributions welcome.)

Thinking about some modern train designs, it almost seems that the opposite is true; in many modern designs, such as the class 166 "Thames Turbo", the first class accomodation is at the extreme ends of the set, where the premium price passengers are most likely to die in the event of a serious collision! Of course, the lower seating density of the first class section means the total death toll might be lower than if an equivalent section of second class seating gets flattened, so perhaps things balance out.

Or perhaps, because crashes are actually very infrequent, this factor wasn't even considered.