[glynjackson]

> "An engineers actions are so far removed from revenue that they can't make a claim so directly"

This statement is simply not true in my experience as an engineer in the tech industry for over 15 years. Sell a bad product 'once', and the sales person 'ability' to sell it again will decrease. Sales people ultimately sell a project and its features, interpreted by engineers. You must incentivise an engineer to be creative, write better features and good code or you run the risk of having something that destroys a sales person reputation along with the companies revenue!