This is how I view work and any relationship to corporate for a long time now, and it took lots of pain to finally recognize it. I'd go even further than that: your primary role is to be selfish and pull in as much bacon as you can as fast as you can, then get out.

I recognize myself a long time ago in your partner, so much mental energy wasted to the game where I could instead just clock in, do some stuff, clock out and spend the rest of my energy where it matters: at home, with friends, cooking, working on personal projects. Let the insane corporate climbers light themselves on fire to keep management warm, I'll derive my worth elsewhere.