急公好义

anxious to help others resolve difficulties (idiom)

to give up one's private interests for the public good (idiom); to behave altruistically; selfless and public spirited

for the common good and forgetting personal interests (idiom); to behave altruistically; selfless

selfless; impartial

to help the needy for justice (idiom); to be loyal to one's friends and generous to the needy

distributing money, supporting virtue (idiom); fig. to give generously in a public cause