Answer:
No, I would not expect someone to receive a chastisement for performing a generous act.
Step-by-step explanation:
Chastisement means strong criticism or scolding. It is a form of verbal rebuke and aimed at punishing and counselling someone who has done wrong. In Act IV of Julius Caesar, Brutus strongly chastised Cassius for taking bribes and condoning a soldier of his who took bribe. When Cassius arrived the camp there was a hot verbal exchange between him and Brutus because Brutus put his bribe taking soldier to death. Brutus scolded Cassius telling him that it was morally wrong to take bribe.
In the light of the meaning of chastisement in this context, it will not be expected that someone who performs a generous act (which is a god thing) would be scolded or chastised.