 The second part of the second principle is the difference principle, which regulates the distribution of wealth and income. Allowing inequalities of wealth and income can lead to a larger social product: higher wages can cover the costs of training and education, for example, and can provide incentives to fill jobs that are more in demand. The difference principle allows inequalities of wealth and income, so long as these will be to everyone’s advantage, and specifically to the advantage of those who will be worst off. The difference principle requires, that is, that any economic inequalities be to the greatest advantage of those who are advantaged least.