Thats the point. Unscrupulous businessmen are a rare exception to the rule. Most businesses are very honest. Your criticism isn't relevant to capitalism but to human beings. Ayn Rand explained on countless occasions to people like you, that criminals and thugs form a very small minority in human society.
Capitalism is way down on the bottom of the list.
It is not capitalism that is exploitative, but rather only certain capitalists. I espcecially agree that capitalism is by FAR the least exploitive of all systems. Exactly - you would do what communist currently do. If you plan to do this it will need someone with a lot of energy, and the ability to troll a great deal on boards like this one. I nominate Tim Lee.