Being the age I am, working in a fast-food business, allowed me to observe the overall environment of this section of the food industry. In the fast food industry, it really does take everyone's effort to get out those orders in time. If no one has that enthusiasm to get those orders out, then those customers waiting in the long lines at places such as Taco Bell, will wait longer, especially that person who cut in front of someone already waiting in the line.
I have a co-worker who says, "They pay her enough for her not to quit, and she does enough so she won't get fired." There are also other workers who do go the extra mile and does things that aren't necessarily required of them, but they are things that should be considered about the work place, such as the deep cleansing of the stores and doing other stuff you aren't really required to do.
Some positions I have seen when applying also state that there are "other tasks" that may be asked of you to perform when on the clock. I like how they word it this way specifically because those other tasks could be those tasks that aren't part of what your job title is.
I personally just try and do my best to push out those orders, make sure they're correct, and have some time to spare before we have to make the other orders. Being short-staffed in these jobs doesn't help at all either, it only makes those wait times longer. I also understand what I signed up for, which does make me laugh because I had to pick the store that is the busiest one in the city. I am also fortunate to have a GM that is cool as well, and co-workers that are also pretty chill and understand what the job entails.
I'll just leave it at this for now, but I am fascinated by this discussion here with regards to work ethics, quitting, and the concept of working for pay.