I’m not sure what you’re getting at. In your examples, in the first case—I can’t tell if it is logic driving ethics or what—you talk about personal consequences being the determinant of the advisability of the action. In the second case (you call it ethics driving logic) the consequences to others are what determines the advisability of the action.
So, in the first examples, you are talking about self-interest, and in the second examples, you are talking about empathy for others. In the last example, you are talking about collective good. It is good for everyone, including yourself, that cleaning up your own dog’s poop is the only acceptable behavior.
For me, it is long term self-interest. I know I am better off if people are willing to cooperate with me. Therefore, I treat others well in hopes this will make them more amenable to helping me when I need it. I also have needs for affiliation, so I am nice so that people will like me.
I don’t kill because I want to live in a safe world, where killing is not accepted. The same with stealing. We all have to do these things, and it is easy to tip over into chaos if enough people start “defecting” from the accepted behavior. Then we could be on our way to a situation such as occurred in the Congo.
In my mind, ethics come from a sense of the collective best interest. People are interested in collective best interest because it benefits them the most. Breaking the collective interest is a high risk tactic, and not necessarily high reward. Stealing has a better risk/reward ratio than murder does.
White collar crime appears to have a lower risk/reward ratio. It can be easier to cover your tracks when completing many small computer transactions or even when developing very complicated trading strategies that no one can understand, as we saw with Enron and with the mortgage loan crisis.
Some people are fairly unsophisticated, and don’t see that their personal interest is tied to the collective interest in many cases. Property right folks (it’s my property and I’ll pollute however I damn well feel) and gun rights folks (every one needs guns because all the criminals have guns, never mind that criminals have guns because guns are too easy to get) often don’t see how their actions make everything worse for all of society. Either that, or they don’t care.
Some people think they shouldn’t pay taxes because they get no benefit from it. They have no idea that they wouldn’t have streets or water or schools or clean air or access to health care or any of millions of other things if the government went bankrupt.
Ethical behavior, in my mind, is that which promotes the collective good. Usually people behave this way intuitively, without logically breaking it out. They may analyze their behavior later (logically) in order to understand it, I suppose. Very rarely do people sit down and draw up some kind of diagram in order to try to figure out what the ethical thing to do is. That is mostly done by judges, and the ethical thing is the legal, constitutional thing.
There is a relationship between ethics and logic, but I think it is used by a very small group of people. Further, I think people usually intuit the ethical thing and then try to explain it. Quite rarely do people try to figure out the ethics using rules and logic. I will do so occasionally—usually when trying to figure out why actions that feel good are considered unethical—but for the most part, I use intuition.