They forgot to mention that they really appreciate that taxes are always discussed in terms of "income".

The truly rich have no pesky income - that's for the servants. They just have property and expenses, which their accountants, lawyers and politicians keep safe.

Hints: tax-free foundations are great, intellectual property is tax-free.

(There's a reason putative class-betrayer Gore Vidal spoke of "our owners", referring to the U.S. aristocracy.)