What should I tell other people about giving money to a Beggar? This question asks whether, what, or how to tell other people about giving money to a beggar.

Scenario

I was seated inside the bus today and I saw a man begging for while selling some incense sticks boxes and he was wearing a mask for an unknown reason. Firstly it occurred to me whether it's worthwhile to donate some amount to him. Them it occurred that drop by drop only the pot will be filled. 

So I decided to donate some and I was suppose to give the bus ticket money to the conductor. I had some hundred notes and a 20 rupee note. I was thinking whether to give a 100 rupee note to the beggar at first and then I thought of donating the 20 rupee to the beggar and pay the conductor with a 100 rupee so that I could have change. 

Both the beggar and the conductor arrived near my seat and I was having both notes on my hand. (I was holding the phone from the other hand). I tried to give the 20 ripped to the beggar and the conductor unknowingly reached his hand to the 20 rupee note and asked where I was going to. I was about confused on what to do and then I settled my mind thinking "It's fine. Let the beggar have the 100 and let him do something beneficial with it". After saying where I was going I donated the 100 rupee to the beggar. This incident happened very fast. And at the instance I let go of the typical craving for the small 100 rupee note so that I could fulfill the charity purely. 

And after that the conductor told me not to give that sort of large amount to them. I smiled and, unshaken in my intention, I continued on the journey.

Question

My question is this: 
I'm not sure whether the beggar was virtuous or not; but I know for a fact that only drop by drop a pot can be fulfilled. So the question is, if this sort of a situation were to arise another time, should I instruct the other person (in this case the conductor) on what the intention and the situation was, or just shut up and mind my business?

May the Triple Gem bless you.
The Buddha has mentioned that it is the givers qualities that matters most in giving. He says for example that if he were to receive something from Ven. Sariputta, that would not be as meritorious as if he gave the same thing to Ven. Sariputta. 

So, if you are a person with Arya qualities, as long as your giving is also Arya, the effects will be much greater than that dictated by the receivers qualities. 

Arya giving is letting go at a distance.