Limit what government can do so that it can't provide lavish benefits to some at the expense of others and that pretty much solves the problem.
So, pretty much get rid of government, then. As long as you allow taxation, government can provide exceptions to taxes that provide a huge benefit to those favored few. And without taxation, government can do nothing. Everything else is the same: any power to regulate includes the power to exempt from regulation, which provides a huge competitive advantage. Any power to enact laws includes the power to enact loopholes that exempt from those laws, etc.