Any data or sources on the impact that wireless marine radio had on the number of shipwrecks and loss of life at sea would be appreciated.
EDIT: Added this note: I reworded the question that I posted about 2 hours ago.
I'm not an expert in this but I've had a long standing interest in the history maritime wireless. My grandfather was a maritime wireless "pioneer". Here's a well-researched piece on the early days of maritime wireless radio (chapter 5 of a longer work). What's of interest, I think, is the extent to which communications protocols, standards of training, even station call signals seem to have come into being as a response to the sinking of the Titanic. Before these things were put in place, it would appear that wireless marine radio wasn't of much help.