Why don't you send her $140 (you know they are very poor over there, $140 is like 2 months average salary) so she can apply for a visa? And you will soon find out what her chances are.Cheaper than spending thousends to fly there and back.
Um actually her family is upper class in poland... and would be considered upper-middle class in America. Her dad OWNS an advertisement company which is large enough that it has American investors, and her mom has an important position in another world-wide company. If i had to guess... they're easily pulling 6 figures per year. They own 2 houses.
So lets not make assumptions here. I'm sure you're bitter and angry about something.