An old axiom: anything is "worth" what someone will pay you for it. So is a car "worth" $70 million? It is if someone will give that much to you for it! Y'see, "monetary value" has very little to do with either math or logic, both of which you are trying to use in an attempt to understand.
“The rich are different than you and me” definitely applies to someone who pays $70 million for a car. Most of us don’t live in that world, so we can’t fathom it.
Oh, I don’t believe the rich need our help disposing of their wealth, most successive generations after the original rich guy/gal squander the money. If you didn’t work hard for it, you don’t value it. Countless lottery winners have proved this, too. Only 20% of wealth is generational, 80% gained through a good idea or hard work. And squandering wealth distributes it better than the government ever could.