How do you instill values and integrity at the workplace?

You can fool yourself using the 'Marijuana Method'. If we make marijuana legal, then all the crime attaching it disappears!!! Solution!!! This translates into things like announcing 'If you need paper, staplers or staples at home, just take them', this eliminates your 'pilferage problem' by legalizing pilferage. This is, of course, just playing with definitions.

The best you can do is demo by example, from the VERY top. If the Big Boss is seen to be ethical, honest and behaving with integrity All The Time, then it will gradually percolate down through the organization. If you have the unenviable position of being on the Ethics Committee, focus your energy on the CEO and make him a stakeholder in the process. Make him understand that if he is seen taking home just one package of computer paper, he's sabotaged all your Ethical policy meetings for at least a year.

For the rest of it, you have to be able to content yourslf that 'it's not as bad as it could be'.