Even if all her donations were a complete waste, one can argue every $1B taken from the oligarch class is a win - less money to buy media outlets and politicians.
Along these lines, I’d almost rather she’d bought major media outlets and newspapers and set them up under nonprofits with strict governance against taking corrupting donations.
Vanguard, black rock, fidelity etc own
/manager 3x the AMZN that bezos does, so more concretely you're taking $3 out of random Americans retirement funds for every dollar you take out of bezos' pocket
those funds sit on far more than just Amazon and are hedged across many different companies entirely for the purposes of avoiding the risks associated with one company.
most Americans have trivial amounts of money in retirement anyway; the median balance is at about $38,176