Intent verses action

Intent verses action.
Do you want to reward yourself for intent? Do you get punished' because of your actions (or lack there of)?

Maybe there needs to be an 'aware middle'

Manslaughter is probably the best example of this.
You drunk with a friend, you drive the car, they go car surfing on the roof while you drive. They come off, hit their head and subsequently die.
Was it your intent to kill them? No. But the end results of your actions caused a death.
In the courts, the difference between murder and manslaughter is intent. So clearly it matters. But someone lost a life through your actions so clearly that matters too.