Old school leadership, this place is running amuck with nepotism and favoritism. If you have any ideas, share concerns, participate in teamwork, or are helpful in anyway and you're not one of the favorites then you will be written up or reprimanded for not "following the proper channels".
If you share ideas or present new ways of doing something and ask for feedback you will be reprimanded or isolated.
If other team members or employees ask for your help and you give it, you will be told that it's not your job to help them. So basically you're told to let them fail even though you know how to help them and you're all working at the same company and trying to achieve the same goal.
If you have anything innovative or exciting to add that will help the company be more efficient, productive or that will help the team and you share it, you will be perceived as making the upper management look bad and in return they will either write you up, alienate you from the rest of the team or will say you're doing something wrong with no details as to what you did wrong. With the new objective goal structure and values that were rolled out by the CEO, you will not receive what your or your teams goals are, you won't have regular meetings with your manager to go over your goals or performance, and if you try to speak up about that you will be put on the radar and tee'd up for termination.
If you go to HR to express concern you will be told to "just hang in there" or "if it's that bad, you should start looking". If a whole team goes at once to HR to express concerns, HR will leave the management as is and the team will just quit as a result.
There is no employee support and abusive managers are allowed to use their position to mess with people. All of this goes against the "how we go about doing the work that needs to be done" core value.