I know someone, not saying it's me but...
Who is nowhere near being a billionaire and never will be. Who lives off their assets and pays no income taxes. And their net worth continues to grow. They borrow against their assets and pay the payments with income off the assets. They have done it for many years.
They are not wealthy and don't have an extravagant life style but they are comfortable and don't have to have a job. They have free time for what they want to do.
I know a lot of people who do the same. Many have the time and ability to do a lot of service so they are giving back. I think it's a good way to go.
So I'm sure it's much easier and much more profitable for billionaires to do it.