I'm making a puzzle game, so the comparison to dev work is pretty obvious. The difference is when you play a puzzle game, you know there is a solution, and the world is crafted to make finding it as fun as possible. The real world is messy. Questions like "should we even do this at all" come up. There are edge cases, and your information is imperfect.
In a puzzle game, you can (generally) see everything, you know what you can see is 100% correct, etc. Games are like an idealised chunk of real life, not the other way around. And IMO that's by design, not some accident.