Billionaires want to live forever so they can impose their will on others forever.
https://www.popularmechanics.com/science/health/a42435488/billionaires-immortality-reverse-aging-jeff-bezos/
They set up foundations, like the Bradley Foundation, that funds attacks on democracy decades after they died.
https://buckscountybeacon.com/2023/06/bradley-foundations-financial-tentacles-now-targeting-the-department-of-justice/
https://wislawjournal.com/2023/09/11/former-milwaukee-foley-lardner-partner-on-board-of-bradley-foundation-referred-for-criminal-charges-in-georgia-grand-jury-report/
Bradley passed in 1965 vowing to overturn the Voting Rights Act. Half a century later, his zombie trust fund money nearly succeeded.
Now imagine Koch's $5 billion over the decades
https://www.forbes.com/sites/mattdurot/2023/10/10/exclusive-charles-koch-koch-industries-has-given-more-than-5-billion-of-his-koch-industries-stock-to-two-nonprofits/