In the case of Jeff Bezos and Bill Gates they already did what you said. They ran their company for a few decades and kept most of their wealth tied to the com

In the case of Jeff Bezos and Bill Gates they already did what you said. They ran their company for a few decades and kept most of their wealth tied to the company. Jeff Bezos isn't 31 years old anymore, he's 56. Bill Gates is 65. This argument reduces to the richer you are the more you can donate to charity. It doesn't really matter if I'm a billionaire, everyone will have more money later in life if they let it compound. The main issue is that there are real problems that need to be solved today too, you can't put everything off into the future