Sentence:  Policing the relationship between government and business in a free society is difficult....Governments have to find the best people to fill important jobs: there is a limited supply of people who understand the financial system, for example. But governments must also remember that businesses are self-interested actors who will try to <WSD>rig</WSD> the system for their own benefit. 
Meaning of the word marked with <WSD> tags:  To manipulate something dishonestly for personal gain or discriminatory purposes.