Everyone's got 'em. Ethics help us decide what is right and what is wrong. Principles are formed when we later review our ethics, and determine if they were indeed, the right choice in retrospect.
I've studied ethical behaviour. Just a fly on the wall, observing from afar. At times, the overlords would swat, telling me to go do something, or be somewhere else. I obliged. I didn't want to get stomped on or anything - I was fearful. Mostly I was fearful that I may lose my job. I did like that job at times - mostly the people around me. But after mindlessly obliging for a period of time, I kept observing and observing, finally noticing a true corruptness be created - greed. They kept pulling and pulling on me to devise a set of lies that led to the profitable venture for an enterprise - that was purely built on lies. This, along with my activities, were purely theoretical electromagnetics - but if we showed we could do it a little - imagine the spectacular speculation!
I got sick shortly thereafter. Very sick. I spent a week soaking in a tub to hold back the vomit. Literallly. Food tasted bad, I couldn't keep anything down - even water - I lost patches of hair - I was literally withering away to nothing - I was sick.
Figuratively, my sickness happened at the aforementioned job months before my actual sickness. My wonderful thoughts strayed to, why is this happening - what are they doing, is this right? Is this wrong? Is this right, is this sinister? Is this right or is this left? I don't know which way to go!!! I finally was pushed to the edge when they decided to ignore my melting pot - the environment. A batch of oil went off into the forest - if a forest falls in the woods - does anyone really hear it? Unfortunately, I did. In a figurative sense, the tree fell on me.
I left that job for a period - sick of what I saw and what I did. I gave up on my dream job to richness and wealth. At that point, I had to start my own. My own path with my own definitions. My ethics and principles may be different from yours, but I know we're both right, on some level.