Doing the Right Thing

Last night, Maria and I went to Wild Oats.  As we were walking in, the woman in front of us dropped a wad of cash.  She didn't even realize it as she strolled on, talking on her cell phone.  So, I picked it up, and set off to return it to her.  This was a wad of about five 100 dollar bills.  It was tough catching up with her, actually, because I had Maria in tow and this lady was clipping along quite briskly.  So, finally, we caught up to her.  She was still talking on her cell phone.  "Ma'am," I said.  She ignored me.  "Ma'am!" I repeated a little louder.  This time, she looked up from her phone conversation.  "You dropped this," I said, handing her the significant stash of cash."  "Oh, okay," she said weakly as she grabbed it from my hand and returned to her conversation ...   Okay???  I'm telling you, if I dropped that large a sum and somebody returned it me, I would probably weep tears of joy.  I know that returning the money was the right thing to do and I never considered any other option, but I was really wishing that we had walked in just 10 seconds later.  Is that wrong?