OOC
Ah, I see what you are talking about.
The standard wealth by level is going to be a total no-go.
The big issue there is the Ironman princible. There is a difference between what Tony Stark can do, and what Ironman can do, and the entirety of that difference is equipment.
Thus, for the various guidelines to work in the original system, certain assumptions were needed to be made, add in the basis of gold=xp in the original material d20 was built on, and you get ridiculous cash growth.
I won't be using that table as I don't need it. In fact, the gp costs of many magic items are basically non-existant or much cheaper than the book. Magic is common enough that low level stuff is not worth much, and the high level stuff is rare enough that it comes down to haggling as there isn't enough of a market to have trends in cost, and unlike the known-to-be-false economic models, items don't have value, there is only how much one is willing to accept and how well they can convince the other side to shift in their favor.
A rich character can have 150-300 gp, while poor characters will have 100 or less to start. It'll all depend on the circustances of your character's arc.