IFF implemented globally, would you truly argue this disincentivizes creation of wealth? Add inflation and exchange rate adjustments and I honestly don't buy that argument anymore.
NOW, will you have selfish actors trying to game the system and evade these taxes through all means possible? Yes, but that's why I think anyone who supports the protection of private property through state violence and democracy at the same time needs to do some heavy gymnastics to justify tax evasion and dynasty enabling tax policies (i.e., anything that doesn't at least do the 100% inheritance/gift tax bit). And of course you'd need to implement it either globally or at least in economic powerhouse blocks like EU+US+Canada.
For example, a well-known issue with open source data infrastructure is that it often has much lower performance and efficiency than equivalent proprietary software. There are many dis-incentives in the open source ecosystem to producing software that is highly performant and efficient, not the least of which is development complexity and sophistication level required to contribute. Open source developers do not pay the operational cost of wasteful data infrastructure but they do pay the cost of their time, and prioritize accordingly. Proprietary data infrastructure is explicitly motivated by wealth incentives to be highly efficient, which is why companies invest in it even though open source equivalents exists.
The relative wastefulness of open source in terms of computing resources is increasingly perceived as bad for the environment, so it isn't just a money motivation. Incentives are a powerful thing and it is evident that open source lacks incentives to produce some important outcomes.
Maybe it’s $1 billion, after which you hit a ceiling function or wealth becomes ergodic, and you earn a badge that says “you won” (in the context of this society).
If you earn such a badge, society would call on you for advise (if you are a non-inheritor).
Did you consider the case where A works twice as hard as B and ends up with twice the wealth of B?