I can just hear Annesley's response (actually he wouldn't respond to that question I reckon).
Players are fined for illegal acts, many which cause injury - refs just make mistakes
We do 'fine' them by the way of sending them to the lower grades (for 1 week on full pay)
Players make mistakes toooooooooooooooooooooo (his go to fav)
who'd want to be a ref then? It's tough enough (lol) at the moment
Only the best refs (lol x 2) make the nrl so you can say those making continual mistakes ply their trade in the lower grades.
-now my head is melting so that's all.