As a married frum man I noticed that so far nobody has written “married women dress to look good for their husband”.
That’s exactly the problem! The same women who dress to kill on the street (with a complete disregard of tznius), dress like a shlumpy maid in the house with their husband. Makes one wonder.
Oomis, tznius is a strict legal requirement in Judaism, whilst kindheartedness is very appropriate but not legislated by law unlike tznius, hence tznius clearly being more important.