At least I had a role in electing the government and can change my vote based on their performance.
The real crux. You want control over what other people do.
Live a few years here in Wisconsin, and then talk to me about how we should give the thieves in the government more money. Foxconn much? Better to choose a few good people and give it to them. Best part about the Bezos method is that all of us can also make a boatload of money and give it to people we trust to distribute it.
Under your proposition, all of us have to give it to people in government who we already know we should have zero trust for.
It is not about money, it about money as a proxy for power over the country.
The guy you're talking to does not have enough money to affect disproportional change. It does not matter to anyone else what he does with it as it can't possibly infringe on their rights, unlike when corporations manipulate media and government.