I don't know about Zambia, but in Argentina most people don't care too much about campaign contributions. The perception is that most of the corruption there is through cronyism, and kickbacks from outrageously overpriced goods and services bought by the State. It is not politicians robbing businesses, but politicians and some businesses robbing the tax money of, mainly, the middle class.
The thing about campaign contributions is that it's all about the exchange: in return, the contributors get a say in government policy, enforcement, decisions. It undermines democracy. Is it better, or worse, than naked cronyism and kickbacks in the form of contracts, overpriced goods and services, etc.?
