KPIs are also killers of quality. I just planned a tech migration that the whole tech team agreed on, and that would bring countless advantages to the company, that got ultimately rejected by higher-ups just because "it doesn't fit into your (mine) semestral KPIs".

KPIs are a good way to make sure nobody overperforms or shows signs of cross-functionality. The moment KPIs take over a company, people get turned into bots.