Graduated tax rates

Is it time to return to the "graduated tax rates" of the past? If we are going to continue to use the current complex tax code, then it might be time to consider revisiting the graduated tax rates of the past that resulted in most executives deciding it wasn't worth cheating, lying or otherwise deceiving shareholders, the government or employees for a mere 10% of the amount to be gained by such conduct. The same graduated tax rates that convinced company executives to spread the wealth with company employees here in the US rather than outsource manufacturing to take advantage of less stringent labor and/or environmental laws and thus earn large bonuses completely unrelated to the executive's ability to improve the essence of the company itself and its product(s). It's regressive, yes; but it might be time to let the pendulum swing back to the regressive side of the clock.