If capitalism insists on those higher up getting exorbitantly more money than those doing the work, then we have to hold them to the other thing they claim they believe in: that those higher up also deserve all the blame.
It's a novel concept, I know. Leave the Nobels by the doormat, please.
How could one Dev commit to prod without other Devs reviewing the MR? IF you're not protecting your prod branch that's a cultural issue. I don't know where you've worked in the past, or where you're working now, but once it's N+1 engineers in a code base there needs to be code reviews.
I hate to break it to you, but companies with actual safe rails to deploying to production do exist.
And when things go wrong, it's never the responsibility on a single dev. It's also the dev who reviewed the PR. It's also the dev who buddy approved the deploy. It's the whole department that didn't have enough coverage in CI.