Interesting...
Just one quibble: “other than pure aesthetics (“I just like it”) ... which are idiosyncratic (i.e. not true for most people)” sounds like a overwhelming exception to me. Given that I've never met anyone trying to convince other people to become vegetarians (though I've read a couple such people), I guess that's by far the most common reason. (I've eaten meat in front of at least a dozen different vegetarians from at least four different countries, and none of them seemed to be bothered by that.)
Depending on how ostentatiously (Which I know isn't the right word, but I think conveys what I'm trying to evoke?) you were eating the meat, it would bother me. The type of meat would also make a difference to me. I know vegetarians who are bothered if you eat any meat near them. They are obviously polite about it, (I certainly never say anything) but it might bother people more than you realize.
If it's worth saying, but not worth its own post, even in Discussion, it goes here.