“In the end, although a business person is entitled to create corporate structures and relationships for valid business, tax and other reasons, the law must be vigilant to ensure that permissible corporate arrangements do not work an injustice in the realm of family law. In appropriate cases, piercing the corporate veil of one spouse’s business enterprises may be an essential mechanism for ensuring that the other spouse and children of the marriage receive the financial support to which, by law, they are entitled. The trial judge was correct to recognize that this was such a case.”