Beneath your dignity
Definition 1 of 1
Pro Tip 1/3Pride Implications
Using 'beneath your dignity' suggests you have too much pride to consider something. 
Cleaning his own mess was beneath his dignity.
Pro Tip 2/3Social Status
Implies an action or task is too low for one's social or professional position. 
She felt greeting guests was beneath her dignity as a manager.
Pro Tip 3/3Subtle Disdain
Expresses a subtle form of disdain or contempt for the activity mentioned. 
He considered responding to the rude email beneath his dignity.