In an interview with The Daily Telegraph, the 41-year-old also said the upcoming Sydney spin-off will be more popular than the Melbourne installment.
“We haven't got any women who have married their money in it,” she said, before explaining she works full-time in the technology sector.
This isn’t the first time Oldfield has shaded the RHOMelbourne cast - Back in July, Lisa took a swipe at RHOMelbourne, saying: “I wouldn't compare myself to any of those girls. The benchmark is so low.”
“The best thing that came out of Melbourne is probably Underbelly so really we are starting very low,” she added.
RHOMelbourne star Gamble Breaux later responded by calling Lisa a “stupid old cow” and “Anne Winters wannabe,” referring to Vogue editor Anna Wintour.
Lisa is married to controversial former politician David Oldfield, who helped Pauline Hanson found the right-wing party One Nation in the 1990s.
Lisa also sparked controversy last month for posting a distasteful Instagram photo (which she later deleted) of the late singer Amy Winehouse congratulating her for being “five years sober.”