Back in the day when people's hours were put on a chart on the notice board (going back 50 or 60 years) it encouraged competition and judgement.
MMXIV - I well remember the charts. In our congregation, they were on a large display board in front of the hall for everyone to view. I was a regular pioneer (100 hrs/month) and had a partner. The pioneer numbers were separated from the publishers so the congregation knew exactly what we were doing. It would have been even worse if I had been the only pioneer.