I hate to break it to you, but every economic scenario is a zero-sum game. In order for an economy to work you have to have a relatively fixed amount of resources.

This whole win-win ideology is mostly a tool to erase where the losers are, and to make losers feel better about losing. Every increase in my paycheck is a decrease in someone else's.

If that was even remotely true, we would still be sitting in caves sharing raw animal scraps. Fortunately it's not true, and things like discovering fire and inventing tools don't take resources away from others, but instead increase resources for everyone. This is just as true in the modern economy.

Obviously the inventor of fire got more of a reward from his invention's bounty, but everyone still benefited. Similarly whoever automates your job gets most of the reward, but ideally we all benefit through cheaper products.

At least, that's how it's supposed to work. Obviously it doesn't always.