Because corporations exist in order to put up a barrier between a business and its owners, that means that the religious liberty of the owners cannot be violated by anything the corporation is compelled, by law, to do.
Why do I say that? I don't mean they are actually on the take. Too Third World. But they are fundamentally corrupt insofar as they tweak every decision they make that bears on politics in favor of the Republican party.
Last December, the Montana Supreme Court ignored Citizens United and continued its ban on corporate election spending, upholding the Montana Corrupt Practices Act. But those corporate interests that were upset by this law are now petitioning the Supreme Court to have it reversed.