The OP asked about if contemporary sheitels are tsniusdik, not if a lady has to wear it.
Yitay and rabbiof, when people went to work on Shabbos in early days in the US, you would want to say that somehow it was not chilul Shabbos either?
Rabbiof, your way is:a)people start doing an aveira(c^v);b) you cook up heteirim postfactum;c)now it’s mutar.Gevalt geshrigen!!