Employees are paid money and can spend it however they want.  At issue in the Hobby Lobby case was a newfound government power to compel employers to buy things for their employees (at their employees' request) that their consciences as informed by their religion tell them they must not buy for others.

In this case it was Protestants being compelled to buy (by proxy) drugs they thought were abortifacients.  But it could be contraceptives per se, alcohol (for Mormons and Muslims), firearms (for aging Jesuits) or tickets to the local whorehouse.  

"Buy me crack."
No.  
"Government sez you hafta buy me crack."  
Still no, thanks to the Hobby Lobby decision.

The employee has zero religious liberty interest--none--in compelling the employer to buy these things, no more than an Aztec fundamentalist has in compelling others to walkup the pyramid steps and have their hearts cut out at the top.  Religious liberty interest of the employee isn't even what the government argued in the case.