That said, what I hope is insightful about this article is that it teaches that having money can easily lead to having much more money.
If you start with $5M in the bank from family or whatever, you can make more from interest than most experienced professionals in any field can make from their skills. Meaning, sitting on wealth is often far more profitable than trying to earn it.
It's a testament to how money disproportionally begets more money and how inequality seems to almost naturally increase.