Breaking the law can also make you a lot of money. OP probably refers to "the cost of doing business", with the implication that sometimes breaking the law and

Breaking the law can also make you a lot of money. OP probably refers to "the cost of doing business", with the implication that sometimes breaking the law and paying all the associated costs (compliance officers, lawyers, lawsuits, and fines) still amounts to less than the profit made from breaking that law.