A prosecutor has broad powers to force a person to defend themselves in court and take a chance that they may lose -- this is incredibly coercive. You are lett

A prosecutor has broad powers to force a person to defend themselves in court and take a chance that they may lose -- this is incredibly coercive. You are letting a profit motivated entity hold those powers over its own contractors in order to threaten them with lengthy jail sentences unless they agree to pay back the contested money and plead guilty to a lessor crime (which then makes it impossible to ever assert you were wrongly convicted and shouldn't have to pay). To add to this, a corporation is does not have a corporeal presence that can be held to account for doing something egregious -- they just get fined and anyone involved almost always says 'I was just doing my job, a cog in the machine' and that's the end of that, whereas if a public prosecutor was extorting the community to pay them large sums of money or face an uncertain trial where they cannot access the evidence needed to prove their innocence, then that prosecutor could be put on trial themselves.