If some employees are doing the job beyond the company's standard working time of 8 hours or on holidays or weekly off-days , then it does not reflect anyhow anyone's hardworking nature or competency or efficiency or proficiency; but it clearly shows a lack of planning, co-ordination, control, communication, team work in addition to someone's credit snatching activities, thriving office politics and above all a poor leadership from the top management in the same organization.