The arrogant foolishly believe gracious charity is giving something with an expectation of its use.
Unmerited grace has no expectations upon the recipient.
The giver is wise to give with constructive likelihood figured into his or her means, and yes, the credibility of promises if any made by the asker should be taken into account. Would you really deem it virtuous to shovel money blindly to a druggie or alkie if other means of helping were available that were less prone to abuse? This is not arrogance; it’s wisdom.
Not even God's "saving grace" is sans expectation. It may be very forgiving of errors along the way, but it ultimately demands the recipient end up in a very definite place.