These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Alternative Character Interpretation: The movie seems to imply that the real reason for Ramius defecting was less anger of his wife's death and more concern over the fact that the Red October's primary purpose would be to start a nuclear war due to its stealth. In that context, Ryan's comments about Ramius's wife are more that he no longer has any reason to go back home.
It could also be said (based on both the book and the film), that the death of Ramius' wife by an incompetent/drunk, Party-connected doctor got him 90-95% of the way there, then seeing the plans for the Red October filled up the defection meter the rest of the way, as he recognized how destabilizing this new sub design would be for world peace.