Don't be rude, get to work on time!

In today's workplace, you would expect more professionalism especially in an economy where unemployment is at it's all time high. I work in an Assisted living home in Wilmette. We take care of seniors who has early to late stages of Alzheimer's and Dementia. I enjoy working there, especially taking care of my residents, they are a joy to be working with. The managers and corporate managers would always tell us teamwork and communication is key. They would stress it upon us constantly. Gossips and tardiness were not permitted it was against company policy, if you are caught you would get a warning, than a write up, and finally terminated . If it happens that you are arriving late, the company ask if you would call four hours ahead of your scheduled shift and let the manager or a lead team member know ahead of time.
So I come into work today to find out one of my fellow team member decided to show up to work four hours late, on an eight hour shift. This team member did not call the facility but had her husband called for her. Her husband did not talk to a manager nor a lead team member but just simply left a message saying his wife will be late. He did not say how late she will be or why she is coming in late. The executive director of the facility end up working the shift until the team member showed up. When she did finally showed up four hours later nothing happen, no write ups or termination. She worked her shift like nothing happen. This is not the first time she showed up to work several hours late, it happen twice already. Team members that she was suppose to relieve had to stay an extra hour. How could someone so irresponsible, unprofessional and lack the ability to be in a team, still work at a place where people's lives are in their hands.