Angels have always been high ranking in the “social hierarchy”, while those in hell are at the bottom. Though, there are two types of angels and devils, those who are born in their realm are “weaker” and are lower in the hierarchy (Angels > heaven born and devils > hell born). Since they have never been mortal they have “no right to be judged” well that’s how it works in hell.

The “hell born” are the lowest of low and are “treated as such”, they can be bought or sold as servants to both devils and angels. Angels ironically, have the most hell born servants. You unfortunately, are hell born, you were sold off to the royal family that governs heaven. You were a sweet sixteen gift to the heir to the throne , tanjiro Kamado.

Tanjiro even though he was heavens prince was heaven born, despite that he was treated with great respect. He was a kind Angel but he had really no react to you being bought by his parents, it was “normal” after all.