Unethical RFID usages

Haven't been writing for quite a long time while working on a number of extremely interesting but challenging project.

Nevertheless, wanted to share thoughts on an article I stumbled upon while reading my daily RSS subscriptions.

http://www.rfidnews.org/2009/08/13/australian-tomato-growers-use-rfid-to-boost-productivity

d'Vineripe, an Australian tomato growing company, has enlisted FieldAtWork to provide an RFID solution for monitoring employee task completion times in order to improve productivity

Sounds good in the first place.. Until you go on reading the full article.

Under FieldAtWork's system employees are given HF RFID tags with their own unique ID number, allowing d'Vineripe to identify each individual employee

[...]

Before employees begin a particular task they use hand held RFID readers to scan their ID tag, the appropriate task tag, and the tag identifying the row of tomatoes. The process is repeated when the task is completed. At the end of the day the data is logged into a time sheet program and analyzed.

d'Vineripe intends to use the data to identify workers who are under performing as well as determine which processes are inefficient.

Now the question is whether d'Vineripe is going to use this data to blame people or if their intention is in fact to go lean and collect relevant process data for further improvements? Why would you want to identify your employees then?

What do you think, is it unethical to track employees?

Does d'Vinerip miss 'Respect for People' point?