I learned about these experiments at university some 30 years ago, and found this to be a very powerful lesson. Of course these experiments were unethical, but I have seen nothing since that disproves the outcome and I firmly believe that a large percentage of people will happily kill other people or commit heinous crimes when some authority tells them to and they can convince themselves it it not their responsibility.

The think I took from it was that I am always responsible for anything that results from my actions. So in my career I always tried to consider what work I do, what customers I work for, and what might come from the things I do. In a business environment that is often not easy, most people work from a mindset that anything profitable is good as long as it's not illegal.