I believe there is some truth to what you're saying. My experience was slightly different where all the devs were working together, nobody "owned" an entire domain. Mainly because if a dev left, we needed to have someone else on the team capable of picking that up and move forward without everything falling apart because we had a chokepoint on something because one dev held all the keys to it.
But it was the same thing, the sense of everybody working for a common goal, and devs never judging each other. We found ways we complimented each other in order to be more efficient. There were times when you really did feel your worth as a dev and all those sort of romantic ideas of what being a dev was? And there you were, living it every day and being super proud of working shoulder to shoulder with some very talented people who saw you just as talented as they were.
Big Corp? 100% spot on with your observation. Its a fucking shark tank and at times, I felt like I was in a mosh pit. fighting off other devs, over zealous project managers trying to get me to do stuff that would make them look good, directors who constantly cut corners to make themselves look better at the cost of your bonus and promotions. Add in the abnormal turn over and feeling like I never had any stability on any of the teams I was on, I just never felt like I fit in anywhere. It was very high school stuff I didn't want to deal with.
If you're not doing that work, either someone else is going to do it or it'll cause issues down the road. Look at it this way: you can either be grateful that so many folks are wanting to help you in your effort and coordinate that effort, or you can stick to the code and complain that someone else is trying to steal your credit.
All of this hinges entirely on your direct manager (and to an extent their manager) being an actually good manager, and not a microcontroller, pass-the-buck-er, or an empty chair.
Any levels of social complexities beyond that has to rely on systems/traditions rather than direct interpersonal relationships.