Revealed preference doesn't always work well as an explanation for why people do what they do though. E.g. if someone falls for an investment scam a-la Madoff, the person obviously didn't want to end up destitute because of that.
A closer example here might be a salesperson performing a "hard sell" on an automobile that is just at the edge of affordability for the buyer. The buyer really wants to be able to drive around in this cool looking automobile, but they end up with a lemon that they can't afford to keep drivable and sucks up all their resources. It's not so hard to draw a parallel from that to someone who has a family on accident.
A closer example here might be a salesperson performing a "hard sell" on an automobile that is just at the edge of affordability for the buyer. The buyer really wants to be able to drive around in this cool looking automobile, but they end up with a lemon that they can't afford to keep drivable and sucks up all their resources. It's not so hard to draw a parallel from that to someone who has a family on accident.