I've seen a large non-tech company (you probably know them) increase dev time by like 50% (plus increase defect rates) across several projects because someone i

I've seen a large non-tech company (you probably know them) increase dev time by like 50% (plus increase defect rates) across several projects because someone inside had built an identity as "the [niche database] guy" and successfully sold [niche database] to the org (with the help of [niche database]'s marketing material) as the solution for all problems, when it was actually a pretty terrible fit for almost everything they were doing. This dude cost them millions, for no benefit whatsoever, by causing morale-crushing slowdowns on every project. It was crazy. Wouldn't be surprised if he's running the tech-side of that whole place by now, either. They seemed to love the guy.