I agree in principle, but I think the limit should be $1 million. You get to be a millionaire but that's it. Enough money to live well, but not enough to run a pedophile island. Not enough to purchase a government. Not enough to be above the law. Certainly not enough to keep you from working and entirely alienate you from the human condition if you do want to live well.
The limit should not be a fixed dollar amount, but rather relative to what it gets you. We want to allow people to earn the luxury of retirement at a young age, including healthcare costs (not included in the US), children's higher education, etc etc. $1m is nowhere near enough for that. So let's not try to figure that, say, $3.6m is the appropriate wealth cap for 2026. Let's speak in terms of orders of magnitudes. $1m is not enough. $10m is. Let's let the minimum wealth maximum be $10m.