They're not a glitch, they're the natural end result. When you have an economic system that rewards those with the most money, those with the money with have the most advantages and be the most successful. Naturally, over time, money will consolidate at the top.

Of course you can impose things like regulations or taxes, but that's subverting the natural course of capitalism. You're literally doing things to prevent the system from working as designed.

Billionaires aren't a glitch of capitalism, they're a feature.