There is always an exponential distribution of wealth, it isn’t rational to argue against it. What needs argument is what the exponent is.
So yeah before we say: "it always looks like this, it's just about what the parameters are", we need to measure it and have a clearer idea of what it looks like in different societies otherwise we won't be able to decide what the desirable parameters are like.
Doing so conveys sloppy thinking while pretending to be rigorous only on the surface.
The alternative is returning to a feudal gilded age where there are a very very small cabal of asset owning lords, a very small class of scribes for the lords, and then a sea of serfs.
The whole concept of wealth accumulation is entirely human-made, and influenced by what the society is willing to tolerate.