“not shomer negaih, dress modestly, etc, the self-identifying MO who actually live up to MO ideals would never dream of doing such a thing.”
My wife would not be caught dead with her hair uncovered in public. She always wears either headscarves or hats. (She has never worn a human hair wig; there are poskim who forbid such.)
However, she is anything but shomer negiah as she is a doctor! She has to touch patients dozens of times every day. Pikuach nefesh trumps any and all tzniut concerns.