Vettel apologised but he has not gone up in my estimation. He needs to avoid doing things that need apologising for. Saying sorry does not excuse intolerable behaviour. When he stops running into people I'll think about revising my opinion of him.
The way he's going he could well decide the championship. Which title contender is next for his attentions?
I can hear the lynching cries in the UK if he 'dares' to as much as touch LH 

He already did. He hit Lewis' nose with his rear tyre one time.... and yet he never apologised for that. Such arrogance!!
That wasn't arrogance. That was Hamilton's fault for putting his nose in the way.
Damn Hamilton for taking the racing line in that corner.
On the topic of Vettel i gained a bit more respect for him as for one he actually apologised instantly and admitted to being in fault which i know some drivers would try to claim they were innocent even when apologising, and his overtake on Kubica was a good sign that although he is still rough around the edges when it comes to overtaking he can do it well when he gets it right.
So yes us Hamilton fans can give praise to other drivers.