The logic of convenience pre-exists secularism. Each human being can and usually does create his or her personal logic of convenience founded around the needs, enjoyments, desires and fears of that person's life.
There are both secular and religious means to affirm or counter this logic of convenience. There are also both secular and religious means to try to impose ones personal convenience on others and both secular and religious means to reject such impositions.
In short neither the religious nor the secular have a monopoly on human decency or indecency.