We didn't chose our leaders. Leaders got billions because we chose to do nothing.
Why do you think corporations strive in America and at the same time the people gets the shit (bad labour laws, bad healthcare, bad wages) compared to Europe? Because they're better?
Fuck no, it's because of Europe. The founding fathers created a "weak" government on purpose, leaving the power to we the people. Why do you think we're the only country in the world with a Second Amendment?
(Except Mexico and Guatemala but that's a different story...)
But guess what, Americans are lazy, we had a duty and we didn't answer the call... so who filled the hole? People with ambitions. And people with ambitions create companies, and companies value profits, not wellbeing.
We didn't chose billionaires. Billionaires got billions because we chose to do nothing.