You seem to be confused about what being bought means.
Clearly Sotomayor is not the only justice that got paid for a book.
https://www.cnn.com/2023/05/04/poli...h-book-recusal-supreme-court-cases/index.html
Gorsuch and Sotomayor both disclosed the payments on their disclosure forms.
Amy Coney Barrett is writing a book that she hopes to sell to those same publishers.
I am curious how this supposedly benefited Random House.
In Greenspan v Random House, the lower court threw out the suit by Greenspan because he had not made a proper claim of relief. When the court rejected his attempt to amend the complaint, he appealed. The appeals court agreed with the lower court and went so far as to say Greenspan hadn't presented any evidence in support of his claim. Greenspan then tried to appeal to the USSC. They rejected his claim. The only possible ruling for Greenspan would have been to tell the court to look at his case again. If the case was that weak, the lower court would have just rejected it again.