If your son needed a special surgery but there was a politician standing in the way of him having it because you didn't have a permit to have the surgery done, you would quickly open your wallet.
There is a thin line, if any, between bribe and political donations.
The thing is, if you don't understand this, you can't really understand why big government is evil, you only get it theoretically, and you probably think if you were a Jew in Nazi Germany, that you'd be too pure to pay a guy to let you cross the border.
I am specifically picking an overly dramatic situation. When it comes to business, if you can't build your 800M skyscraper without contributing to the current government to not-prevent-it-by-force - i.e. 'permits' - be it a democrat, republican, fascist or communist government, you quickly find that you give to whatever government is in power.
Then, when you run for office to try to make the country friendly to pure capitalism, beandog starts calling you names, as if you are equal to the government you paid off.
Grow up!