Looking at Microsoft (or Ggole, Apple, Facebook, etc) is a distraction. They have the resources to keep great engineers from leaving toxic environments - not just by paying a lot, but by having the most challenging and huge scale projects, and by having other great engineers. Those things don't apply to Acme Software Inc. Most businesses aren't building world-class teams or making cutting edge products. In that environment cultivating a team where someone speaking up might be shot down and made to feel ashamed will lead to developers refusing to share ideas, which is potentially bad for the business, and worse, refusing to share experience, which is definitely bad for the business.

If an engineer feels they can admit a mistake early then the rest of the team can help to fix the issue before it escalates to the point where you lose a client. If an engineer hides their mistakes because they're afraid of how their boss might react, things are left lingering, and they don't get fixed. That's how really big problems happen.