There is a market for insurers that provide those services, but those services will be at an increase over ones that do not. Also employers that wish to take a moral stance can then force their employees (who are now mandated to take insurance) to buy insurance that does not provide this coverage. Therefore my money is going toward something I do not believe in, which is denying women access to contraception/abortion/and morning after medication. Not only is my money being forced into these companies, I am also depriving companies that do provide these services from having my money and thus not supporting a cause I believe is beneficial to the country.
What right is being impeded by these nuns having to make use of an insurance company? The nuns are allowed to speak their beliefs, practice their beliefs and receive medical treatment. Their beliefs are respected as nobody is going to force unwanted medical treatments or medications on them. Their rights are not being harmed. Yet by allowing them to not take this insurance they will be setting a precedence that could deny other women medical care that is desperately needed. No rights of theirs are being impeded in following this mandate, but in disobeying the mandate they are denying others the very best medicine available.
A government should seek to accommodate the ethical and religious beliefs of its people, but should secure the welfare of its people first. Hence the reason behind the separation of church and state.