Justice?

A story from the news yesterday totally shocked me. A small girl, aged 3 was run over while crossing the road. She was hit by a driver who was in a stolen car, driving without insurance or even a valid driving licence. He didn't stop after the accident, but later turned himself in to the police. Yesterday he was sentenced to jail : 12 weeks As if that wasn't enough of a slap in the face for her family, I saw her mum on a news programme. Apparently there was a collection of flowers and cuddly toys laid near where the girl died. Someone stole one of the teddies, and he also was caught and prosecuted. He got 8 months in jail for that. How can that be comparable?