I rather think it is ironic, a 51-year-old businesswoman, fell into this scam.  Alas, an experience does not mean anything if the perpetrator is doing their social engineering skill, I'm sure they are aware of how fragile she is and thus able to execute the scam successfully, note that they also set it up over a lengthy period of time.

Generally, scammer handbooks are similar in essence, playing the psychology part of the victim, building trust, pretending to help them, gaslighting them, etc. The problem is not many people are exposed or comprehend to how plentiful scammer are existing and how the method evolves, the method or mechanism is similar but the execution can be varied thus there will always be a new victim. It is unfortunate, but that's that.