There’s a reason why for averos bein odom lechavero, the rambam says that a sinner needs to confess publicly for it to be optimal teshuva… But for mitzvos between a person and Hashem, the repentant man should not confess publicly due to the chilul Hashem.
This is because it’s understood that gezel and other sins are part of, sadly, society; sinning against man is not the same level of rebellion as sinning against Hashem, even though of course all averos are against Hashem, it isn’t as clear when someone steals etc