I don’t know how can you pass sweeping generalizations even if curiously you had the misfortune of encountering desperate people seeking rishtas. As I said before, I know many “wealthy guys in Pakistan” contend with their lives there, as well as people from relatively humble backgrounds who migrated abroad capitalizing on their own educational merits alone. Also there is no dearth of people, from similar backgrounds no less, she could have met online who would be just as willing to shower her with “compassion.”
Was her decision extraordinary? Yes. Was she being completely naive? We don’t know. Of course, they both got something out of it, but it is not necessarily a “ticket overseas” for the guy. We can sit and speculate endlessly about the shortcomings/ulterior motives of the guy but the fact remains that she herself chose to marry him. Should the guy turns out to be evil or she finds out that it was a transient infatuation that struck her she can always opt out of the marriage. Such a decision, I am sure, is both acceptable and uncommon in the country in which she lives.