Why? Because this chart shows a result that has been demonstrated time and again - money is not best incentive for motivating people (see Dan Pink's Drive for this argument in book-length form). What did McKinsey find more important?
- Praise from managers
- Attention from supervisors
- Opportunity to lead projects
In other words, people want to know they matter! They want recognition and opportunities. Much cheaper than pay raises and bonuses, right?