I don't see this as some sort of deep ulterior motive other than to spread love through the community. In a society filled with so much hatred and unkindness to strangers, I think it's great to see guys like this doing simple things to make people smile. It may not complete resolve tragedies, yet don't think that's the point. Who knows, a hug from someone who cares for the common man could make someone's day and that's all that matters.
I mean that shouldn't be a mental justification to be a prick. I think people are instinctually driven towards happiness, it's just very easy to cling onto hatred.