Because the wealth of Jeff Bezos according to Forbes is just the amount of Amazon shares he owns, multiplied by the price of the stock on whatever day it was that somebody at Forbes decided to work out how much he was worth. Bezos, just like you and I, pays tax on his income. He only gets taxable income from the value of his Amazon shares when he sells them, which like most founders, he doesn’t do very frequently.
You’re literally just getting upset at him for not liquidating his entire position of Amazon shares (or options) every year. If he ever wants to turn the theoretical number some Forbes intern came up with for his net worth into income, then he’ll have to pay tax on it. He could theoretically live the rest of his life without selling his shares if he wanted to, just like you or I never have to sell any shares, or property, or any other type of asset we own. However if he did that, the IRS is going to come and take the tax he owes from his estate.
There is no tax evasion taking place here, this isn’t even a loophole. It’s the same treatment everybody gets.
You don’t have to sell your assets if you don’t want to, and you don’t make a taxable profit from selling your assets… unless you sell them. The propublica article you’re quoting is designed entirely to rage-bait people who don’t want to think about the topic long enough to figure that very basic fact out.