"When it comes to employment, we have failed to live up to the promise of the Americans With Disabilities."—Sen. Ted Kennedy Jr. (Huntstock/Getty Images)

In an op-ed, disability rights lawyer and Connecticut state Sen. Ted Kennedy Jr. argues that businesses employing and accommodating people with disabilities see significant improvements in their finances. Kennedy cites a recent study of 140 companies with an average revenue of $43 billion. He says the research shows higher revenue, net income and profit margins among companies that hire, encourage and advance people with disabilities, and that provide reasonable accommodations and mentoring programs.