Gender Quotes in The Scorpio Races

How we cite our quotes: (Chapter.Paragraph)

Quote #10

"Do you mean to change the establishment? [...] So you wouldn't say you were inspired by the women's suffrage movement?" (59.7, 59.10)

This is the only time politics ever get explicitly brought up in The Scorpio Races. Does this mean the book takes place around the 50s or 60s, when the women's rights movement was hitting its peak, or is it even earlier?