Everyone who dies is denied a Nobel Prize.

Also, you probably forgot Wilkins entirely: the third man who was awarded the Nobel Prize.

Also, Franklin did not "make the breakthrough discovery" in anything, though at several points she contributed some key data or insights (as did many people, and yes, she does have claim to be in the top tier of those who did). Watson decided to make it seem like it could be spun that way to make a more engaging story. Also, it wasn't genetics at all, but structure.

An article in Nature has a very good overview of what Franklin did actually contribute: https://www.nature.com/articles/d41586-023-01313-5

Anyway, this paragraph of yours really should be revised. It doesn't support your Matilda Effect point (because dead people don't get Nobel prizes, regardless of gender), and it contains multiple misleading and factually incorrect statements.