Neither is “dropping” change into someone’s hand. At that instance only one person is holding the change at a time. So why did you bring that mashal and the correlation? It doesn’t fit the situation and neither does men handing “tznius” cards to women. It is not a man’s inyan it is something that should be left to women.
On the other hand if you would “PLEASE” hand those cards to men who wear those tight pants or whose underwear is showing, that would truly be a mitzva!!!!