Somebody’s fall from grace
Definition 1 of 1
Pro Tip 1/3Loss of Respect
This phrase implies that people no longer respect someone due to their actions. 
The once-celebrated athlete's doping scandal led to a fall from grace.
Pro Tip 2/3Public Disappointment
Often used when many people are disappointed or shocked by the person's actions. 
The politician's fall from grace disappointed her supporters.
Pro Tip 3/3Not Literal
The phrase is figurative, not referring to a physical fall, but to losing social status or esteem. 
His dishonesty resulted in a metaphorical fall from grace in the community.