Why am I treating someone "poorly" if I refuse to go out of my way to give them help when it's not a requirement of my job? For example, refusing to be an unofficial mentor for somebody. I'm a single parent to two little children, if my career burns it's far more than just me losing some income. I've had to work hard to position myself so I can balance work and family responsibilities.
I've returned every wallet I've ever found and I've never taken any money from them. Doing so poses no risk to myself. It's very easy to stand on your high horse and criticise others but after you've been in the situation of being accused of something it changes your opinion on certain things. I hope that you never have to deal with it.