If you do not:
You are losing money and you are exposed to a potentially huge liability.
When talking with employees about ethics, you must always stress that making money is not a bad thing. People easily confuse the drive to build profits with greed. Business is a fair exchange. When rules are broken to make a little more money or to make something a little easier, trouble starts.
Where to start? Talk about ethics. Talk about why certain rules are in place. Talk about right and wrong.
When a company gets serious about ethics it will not suddenly see a huge profit increase. The benefit is in the reduction of liability. One minor unethical shortcut could cost the company millions.
Do you know that just talking about ethics reduces employee theft, faked sick time and unethical on-the-job behavior?
Give me a day to talk about ethics with your people. That day will more than pay for itself.