I'm just saying that when you incentivize people to do X, be aware that X is what you're going to get, every time.

I remember when the unit at the company I worked for decided to put a big graph of the bug count on the wall, and announced incentives for retiring bug reports. Within a week, the entire unit had devolved into knock-down drag out fights over who had solved a bug, if a bug was really a bug, if a bug was actually 3 bugs and the person should get 3 credits for solving it, people filing fake bug reports and then "fixing" them, etc. A couple more weeks of that and the graph was taken down and the incentive program terminated. These were intelligent, well-educated people, going berserk.

There was another case where the company got a big contract from IBM, and hired some mercenary contractors to fulfill it. Part of the deal was each mercenary got a $10,000 bonus (worth about $30,000 today) for getting it done on time. I'm sure you know what happened. It shipped the day before the deadline.

I asked one of them, "did the bonus get you to finish on time?" The response, "absolutely not, it had nothing to do with it. We're professionals!"