The scam was sold on her gender ("successful female entrepreneur"), so unfortunately it's going to be part of the heuristic.
Male-led scams aren't sold on the gender of the scammer; gender is completely ignored (No one describes those as "a successful male entrepreneur").
Unfortunately, the gender sale was a big part of the scam. I'm looking at many male-led scams, and they did not sell it based on the gender of the scammer.
> Which only proofs how deep sexism is rooted.
No, it only proves that you have ideology deeply rooted. I believe you see sexism everywhere. The type of person you just want to say "oookay, huh, is sexism here, in the room with us?"