I think they are probably more “on the other side of the scam” than we know. The fact is that this guy has taken advantage of his victims and there is no evidence, only speculation or innuendo, that these ladies somehow are or have been involved in subjecting scams upon others themselves. Not every Thai woman is a scammer but we do tend to hear a lot of stories in this space that would have us believe that.
In fact on a worldwide basis there is evidence to suggest more than 70% of all scams are perpetrated by men whilst romance scams sit at close to 50/50.