Examples: Walton family own majority of Walmart. Not self made.

Zuckerberg built FB. Self made
Bezos built Amazon. self made
Jenner built this make up company. Self made

She had advantages that most don't have. No doubt. But that does not take away from the fact that she started a company and built it up to be successful.

Without this company, she would just be a famous sister in a famous family. She made herself a billionaire.
There are plenty of people with advantages who are doing nothing with them.