Why do they never expose Harry Kim for being a duplicate and not the real one?

Why do they never expose Harry Kim for being a duplicate and not the real one?

Why wasn't Naomi Wildman beamed into space for being a duplicate?

Didn't the original come back? It's been so long, I've forgotten.

the original died

That why they never promoted him.

Oh, poor Harry.

the entire crew were duplicates by season 5

who cares

It's the 24th century. Androids have rights. Don't duplicates?

Why does Harry never get promoted, while Tom is:
>expelled from the academy
>imprisoned
>released on special order by Janeway
>recommissioned as ensign
>promoted to junior lieutenant
>demoted to ensign
>repromoted to junior lieutenant

because Tom used to be a criminal