Madison was a student of history and a student of human nature. If madison was alive today, do you think he would be content to quote 225 year old pearls? Absolutely not. He would learn all he could.
Federalist 41 and 51 reveal his thinking process. Quotes about him being against benevolence in government reveal only his conclusions at the time.
(A) can you stop generous people like my mother-in-law from voting for government to be benevolent?
(B) can you stop selfish-people from voting for government to be generous (so they can receive)?
No you can't. You can't stop benevolence in government any more than we can stop people from being greedy, or being ambitious.