I disagree (depending on the case, I guess), but that's a matter of opinion. My answer was merely to explain the judge's actions, and was not intended as a comment on whether this particular sentence is just. If the judge believes the initial jail term was a fair punishment, then if he were to add a fine, he'd have to reduce the jail term, for the punishment to remain fair in his eyes.

And the punishment for murder?

Is murder just as bad as rape, or worse?

If I were the victim of rape I'd want the death penalty, but from the outside I can easily see that that's not just.

What about Qisas, a traditional Islamic way of performing justice via “eye for an eye”? A victim or their family may choose to inflict equal damage to the guilty party’s body.