The last time I went to HR on toxic leadership it was very well known. I told them I'm the ideal employee. I've been here (at the time 10 years) rarely make a fuss. Never been to HR before. I had a well thought out letter explaining the challenges I was seeing and how toxic it was and how it was impacting myself and my coworkers.

They asked for names. I gave none. I told them they have the names (I had good info these people were well known). I explained that people are leaving the org, good people are not coming here. They need to address it. About 1+ year later there was a huge clearout of leadership then another a couple of years later. People who were well identified as toxic.

I like to think my speaking up helped with that, and I'm still here. More people need to stand on their principles damn the consequences.