Essentially the company has a "kiss up, punch down" culture.
Leadership in the business routinely promote and reward more senior contributors who look busy and tell them nice things, rarely those who get the work done or contribute to a better workplace.
The leaders and senior IC's who have been with the company longest behave like a cartel, having private conversations with business impact excluding newer contributors whose voices would be important to include.
Multiple reports of misconduct instigated by senior contributors against junior contributors went unanswered by leadership.