Meh, people blow polys all the time. All it takes is for something in your life to exist that could suggest you could be blackmailed. E.g, if you don't pay your bills on time, bankruptcy, taxes, DUI/possession (especially if you failed to mention it. no records aren't sealed), someone in the family married someone from one of the countries we don't like, cheated on your wife and not confessed, secret homo, etc...

It's on a personal case by case basis.