The best way to get capital is to have connections with government officials and use their absolute power to give you advantages or just straight up give you money taken from taxpayers. Exploiting people for profit is actually not easy without government aid. Don't believe me? Go and try to hire someone to do something for you and see if you can exploit them and how much capital you can make off them. Let us know how it goes. Problem is, most people want fair compensation to do anything, so you just can't exploit them too well. They won't accept one penny less than they want. No, much easier to just have the government forcefully take their money through taxation and use your connections to get a piece of it.