The issue of tznius has many madreigas. Not all of us are on the higher madreigas. That being said, tznius also has core basics. That is something we must all strive to minimally meet. In many communities, the basic level of tznius is above the technical minimum. In such communities, it is necessary for all to follow such community standards.
If someone is not yet on the madreiga of following the necessary levels of tznius, at least they should provide the courtesy of not promoting such sunken madreigas. Strive to raise ones on level, while respecting the correct (or elevated) levels of others who are moser nefesh to meet or exceed the proper code.