Last but not least, Glass-Steagall helped restrain the political power of banks. Under the old regime, commercial banks, investment banks and insurance companies had different agendas, so their lobbying efforts tended to offset one another. But after the restrictions ended, the interests of all the major players were aligned. This gave the industry disproportionate power in shaping the political agenda. This excessive power has damaged not only the economy but the financial sector itself. One way to combat this excessive power, if only partially, is to bring Glass-Steagall back.