Some people place great store in having what they call “high standards”. Which is to say they voluntarily refrain from many harmless things that others might readily do, while congratulating themselves for their better nature, breeding, personal sense of excellence, etc.
E.g.
Some people use paper napkins at home [shudder]. I would never do that. I have my standards and only linen napkins will do. Which I iron after laundering.
Napkins have no moral dimension. But the standard keeper has ascribed something good to linen and by extension linen-users versus something bad to paper and by extension paper-users. Keeping good posture, recycling your plastics, driving with economy in mind, and a thousand other things are self-imposed limits,
I’m not sure where any of this falls in the OP’s taxonomy.
I suppose a different but closely related question is “Do you do things you’d be ashamed of or embarrassed about if your mother or next door neighbor found out?” If the answer for you is “no”, that really says you’re allowing them (or is that “community standards”?) to set your behavioral limits. “Should” you let them do that to/for you? Hmmm.
Here’s another idea …
Moral/immoral is not a bright line distinction. There are things obviously well on the white or black side, but there is a lot of gray in the middle. How dark a shade of gray do you want to be? How close to the line do you want to skate?
Some folks live to drive right up to the line, almost taunting it. Others want to stay way far away from it, back turned and eyes scrunched closed.
I have a hard time deciding on a normative stance for all that amounts to “63% saturated gray is OK, but 64% is outré”
The OP talks about “shouldn’t”. That’s a normative word. And requires we pick an X% saturation of gray and stick with that X.
That seems to me an indefensible position.