I agree with the majority of what you said, with this exception:

Too many people with a hundred million or even a billion dollars are choosing to sit back and retire rather than invest in the future.

They don't choose to sit back. It's like a disease, they have to sit back. They've spent their lives having wealth, and building wealth. To invest in the future and possibly lose wealth, is not a risk they are willing to take.

That's why they don't invest in the future. :(