Got scammed in nandi hills

I was at the entrance arch of nandi hills where a old lady was begging for money. She came near me and said her husband died and she has no money to eat food, i didn't have any hard cash so i told her that i will get her food in a near by hotel. She pointed me to a hotel near by, we went there. She wanted to eat idli, so i asked the hotel person to give her idli, but the hotel people had everything except idli. Then i asked that old lady if she wants to eat something else, she insisted she only wants idli and nothing else. The hotel lady told me to pay and go saying they'll prepare idli and give it to her. I in that moment a dumbo without thinking paid 100 rupees for a fucking idli. Just after that moment i realized i was scammed. I stood just near by the hotel with my friend watching if they will give her the idli, and they never did. That old lady started begging again to other people and when she came near me i asked did you eat, she said she took parcel (which obviously she didn't because i was watching her the whole time) , and pointed to her bag, showed me the bag which had a black cover and told it was the parcel thinking i wouldn't notice it. Me and my friend knew by the looks of it was not at all a parcel. We didn't wanted to continue this anymore so we just agreed with her and moved on with our day. For me what hurt the most was not the money but realizing conscience has no meaning in this age. You have to go against your will. People like these make me not to think of helping in future even if they genuinely need help.