It's good to show your gratitude toward others.
Tammy is working as an emergency medical technician during an emergency, and she is processing patients as quickly as she can through the emergency room.
Tammy needs to get the clerical staff processing people more quickly.
Tammy praises the work of the clerical staff, telling them that they are having a great effect on patient care that day, and she appreciates them.
Tammy tells the people processing paperwork for her patients that they aren't moving fast enough and that they're going to cost someone their life.
The clerical workers are motivated by her words to keep working hard and to get people through the system as quickly as possible.
Her words create a shock wave with the people processing patients, but they have a counter motivational effect and the paperwork moves even more slowly.