“You can only exploit a person who is attached to selfish enjoyment. You cannot exploit a person who is detached.”- Radhanath Swami
How do you exploit someone? You give them the temptations, you bewildered their intelligence, and then you have them under your control. Or you create within their heart a great fear that you are going to take away their selfish enjoyment, and then you have them under control. So these are the two ways in which people can be exploited.
But one who is detached cannot be controlled by anyone.