SJSinNYC, While girls generally dress for women and girls, women who have been married for a while, their yetzer hora can change. Some frum women are unfortunately clearly provocative in dress and speach. I believe you are single or at least newly married. But definitely not married for a few years. People change. If women have not gotten used to dressing in a way that shows they respect themselves and dress for themselves then for WHOM they dress and try to impress can change. From dressing to impress for women it can easily evolve into dressing to impress for men.
While I agree with your line,”I am only responsible to ensure that I keep halacha, I cannot control what others do.” I do not agree with your next sentence that seems to imply you will not be held accountable for causing men to sin if you do not dress within the parameters of halachah. While a man is not exempt from shmiras eynayim regardless of how women dress, those who are lax in the halachos of tznius and as a result cause a man to sin, ARE responsible for causing someone to sin. One is not allowed to be the cause of sin, regardless what the others responsibilties are regarding sin.