Because if you think telling me what you do for a job is going to change my mind over a decision that reflects company policy then you are, frankly, wrong.
I hate it.
Why should it matter what you do for a job? It holds no sway. A decision has been made. Deal with it.
Aibu to think if you try to use your job to change a decision, more so when youre in the wrong, you are a knob