When people is not taking responsible to their work, they don't really have the motivation to practice Dharma, and if these people are working in Dharma environment, it's very ridiculous. I came across some people like these and my question to them is "Why you join dharma work?", some of their answer are "to have peace of mind". In my heart I laugh because I think you will not have a peace of mind if you join Dharma to have a peace of mind. You will have much more problems than secular work as you are bringing a peace of mind to people, so the problems you face will be double, it includes ours and others people problems.
I totally agree with valeriecheung said, it's also our practice to work around people who has no responsibility in work, hehe...maybe in our previous life we caused these problems to people, so it's time to purify the negative karma now.