Ah, I think there's a few factors behind it. One would be the maturity of the individual. Less mature people I suppose would tend to be more aggressive and unaccepting. Two would be what their "punishment" was. Somebody might be more angry over being banned as opposed to getting infracted for a useless post. Third would be the person's opinion on what they were punished for. If they feel they were wrongly accused, they'd naturally be more angry.
Anyways, I tend to treat people with respect if they treat me with respect. If an admin insults me or is condescending towards me, then naturally I'm going to be less respectful towards them. If they're kind and respectful, then I too will act that way. The only exception to this is if I feel I've been wrongly accused of something, in which I would speak up, but not in blatant rudeness. Just my opinion on the matter.