Gina Rinehart, chairwoman of Hancock Prospecting Pty.

Remember Gina Rinehart, the Australian billionaire who was recently called the richest woman in the world? Before that, she was mostly in the news for disparaging her children.

In a battle over the family trust, Ms. Rinehart said the kids “lacked the requisite capacity or skill, knowledge, experience, judgment or responsible work ethic” to manage the business and inheritance.