You might consider reading The Millionaire Next Door, https://en.wikipedia.org/wiki/The_Millionaire_Next_Door One of the big surprises in the book was the number of millionaires that live very modest lifestyles.

They become millionaires and stay millionaires because they don't change their frugal spending habits.

Now certainly these people living modestly don't have assets at home that are juicy targets, but they would be juicy targets for kidnapping and extortion.