You can’t take it with you!
Heck, you can't even take it for yourself! Lots of this so-called wealth are only numbers on paper, because once you cash in stocks, bonds, and other deferred wealth, then the taxman takes a big cut before you can spend it (and then there are sales and wealth taxes on purchases).
When a "rich" person dies the taxman takes a big cut, so even your heirs can't take it for themselves.