Comment by mbrock

It's not so simple. An analogy is the Rust formatter that has no options so everyone just uses the same style. It's minimally "unethical" to use idiosyncratic Rust style just because it goes against the convention so people will wonder why you're so special, etc.

If the rules themselves are bad and go against deeper morality, then it's a different situation; violating laws out of civil disobedience, emergent need, or with a principled stance is different from wanton, arbitrary, selfish cheating.

If a law is particularly unjust, violating the law might itself be virtuous. If the law is adequate and sensible, violating it is usually wrong even if the violating action could be legal in another sensible jurisdiction.