Ride, etc. roughshod over somebody
Definition 1 of 1
Pro Tip 1/3Power Dynamics
This phrase often implies someone using their authority without concern for others. 
The dictator rode roughshod over the opposition, ignoring pleas for democracy.
Pro Tip 2/3Negative Connotation
The phrase usually has a negative connotation, suggesting unfair or harsh behavior. 
She rode roughshod over her colleagues' ideas, implementing her own without discussion.
Pro Tip 3/3Emotional Impact
Used to express the emotional damage caused by someone's actions. 
Absent parents can ride roughshod over a child's need for attention and stability.