Billionaires mostly get richer by creating value. If they lead a company that creates $100 billion of goods (ie, the value of their product is worth $100 billion more than the value of the raw materials), and they scrape $1 billion off the top and use the remaining $99 billion to pay employees and taxes, then they are $1 billion richer. And everyone else is $99 billion richer (divided among all of the employees and customers and government, so each only sees a tiny fraction of the created value). But yeah, the billionaire got richer and you should be mostly happy about it because you're richer too. If you've ever bought a smartphone, you gained something of value (the difference between how much you like the smartphone minus the amount you paid for it), and you enriched a billionaire who owns the company that made it simultaneously. Oops oh well, at least smartphones exist and you get to buy one if you like them. Sometimes capitalism works and nobody loses (only sometimes, there are like a million caveats, but billionaires existing in theory is not one of them)