With the real estate connection, the wavey hair, the double-breasted suits... surely Gage is a veiled reference to Trump?
Also, kinda hilarious that they stole a story from Citizen Kane as if the critics wouldn't notice.
In the book, the billionaire is Middle Eastern and the husband is Jewish, a configuration that would never have happened with a high-end Hollywood movie but which would give what happens some additionally provocative context.
Synopsis: John Gage offers a down-on-his-luck yuppie husband $1 million for the opportunity to spend the night with the man's wife.