First line manager does rating and RSU allocation -> senior management makes changes unilaterally after the fact based on who they like or where they came from without consulting the first line.
Layoffs are done the same way.
First line manager "this is the person we need to let go begrudgingly"
Senior management "That cant happen .... we've already let on (s-x or genetics) go and HR says we can't do another"
I don't need to describe who are easy targets after that.
This company is like the mafia. Your work and participation are irrelevant.