Capability becomes a burden.
The more capable I was, the more I got loaded. Not with the work in my job description — with everyone else's. I could hold more resources, so resources came to me. I could carry more political weight, so politics came to me. I became the senior person's assistant, doing low-end work for someone else's KPI. My actual scope quietly shifted, became the culture, and started costing me my performance and my promotion.
Competent people left, one at a time. The ones who stayed learned to dig emails for accountability. Every conversation had to be black-and-white — whoever didn't get it in writing got blamed. The hardworking became the careful. The careful stopped doing real work.