If the answer you were looking for was "managers", then you have no concept of just how big Amazon is.
According to TFA they have about 106000 managers before this layoff. You don't give 106k people any meaningful control over the company's policies and procedures, that has to come from the layers above the managers, probably several layers up.
If you are not responsible for whatever decisions you make, and you don't even make any decisions that amount to anything at all, plus you don't do anything(code, SRE etc) why should you have a job?
According to TFA they have about 106000 managers before this layoff. You don't give 106k people any meaningful control over the company's policies and procedures, that has to come from the layers above the managers, probably several layers up.