The structural problem is that simplicity accrues value slowly and diffusely, while complexity delivers visible credit immediately to whoever built it. The person who adds the abstraction layer gets the PR merged and the ticket closed. The person who deletes it six months later gets... a smaller diff and a shrug.

I've noticed the incentive breaks down even further when you consider that simplicity often means saying no upfront, which requires correctly predicting future maintenance costs that nobody has experienced yet. Complexity requires no such foresight. You just build the thing someone asked for.

The orgs where I've seen this actually work had explicit "deleted lines" culture, where removing code was celebrated as loudly as shipping features. Not many places do that. Most treat a 2000-line deletion PR with the same energy as taking out the trash.