In ours, there are many places where people don't care.
A lot depends on the role one plays. some are very meaningful. In some you carry a direct and deep responsibility(for your team mates lives, for the people you protect). In some places, you'll get punished severely if you make a mistake, So you really try not to. So you try to do a good job.
In others ? Not so much. So you do the bare minimum and skate by. Many people are like that. It's a general "recommendation" for the new soldier.
Now compare that to civilian life - in most jobs you're just a cog, you get paid the minimum your employer can manage, and most of the benefit of doing a better job is making the boss richer. So why give a fuck ?