This was a frequent occurrence.

When Peter was "Master of Offices," he daily harassed them with monstrous thefts.

This man, although he was of a mild and by no means overbearing disposition, was the greatest thief in the world and an absolute slave to sordid avarice.

He it was who (as I have related) contrived the murder of Amalasunta, the daughter of Theodoric.
There are in the imperial household other officers of much higher rank, who, having purchased their positions for a larger sum, receive better pay in proportion.

These are called "Domestics" and "Protectors." They have always been exempt from military service, and are only reckoned members of the palace on account of their dignity and rank.