Fall from Grace:

n,v If you fall from grace, you do something that results in a loss of respect and support, especially among those who influence your life or career.

The company's vice-president was expected to take over the company until he fell from grace after being arrested for stealing company funds.

It's been sad watching so many athletes fall from grace and have their records deleted from the record books for taking performance-enhancing drugs like steroids.

Mike's fall from grace was quite spectacular.