In most cases or circumstances, hard cash is the best form of help offered to the poor n helpless. With money, one can get the required things in dire need.
But most things cannot be converted to anything or exchanged for buying other things or services like the barter system in ancient time. No matter how expensive somethings r they r much devalued. If that thing is not required, common or more than needed, it is valueless n useless to the receiver.
Almost anything can be bought or any requirement can be met up with money.