@sozobe,
More seriously now a maximally ethical person certainly is not aware or even much concerned with its maximality in the first place...because if it is, then is just playing a good scout with a calculator in its pocket...a sort of investment in good sleep rather then insomnia...smart but not particularly appealing...
...as I see it maximally ethical persons just really try to play fair...the first step of it would actually be about avoiding enter a contest of ethical behaviour by tramping others conceptions on ethical behaviour...while one may disagree on what is ethically correct or ethically prior, debating who is being the most on anything just sounds silly...ethics should not be regarded as fashion. But then I guess what you really meant and were interested in was in knowing which principles we value the most...