Business isn't a Zero Sum Game
"Business is not a zero sum game, because genuine value can be created. However, once the value has been created and it's time to divide it up between you and your customers and your vendors, it does shift to zero sum and it is important to capture as much of it as you can for yourself."
One Perspective on Business's Success and Failures
"Business is not a zero sum game. For you to succeed, others don't need to fail. This is especially true of the internet. The most successful businesses aren't ones that grab market share away from their competitors, but rather ones that find entirely new ways to deliver value to users, and then to capture some (but not all) of that value."