You say you wouldn't personally help anyone or any pet... so I guess you aren't responding to any Christian infomercial any time soon yourself. On the other hand, I would pick up a dying dog on the street, and I have given many dollars... to the Toronto Sick Kids, Montreal Children's Hospital, and others over the years. My tax return this year will reflect that. I've also given of my time to various causes, even spending time with those who have no hope. So once again, I think my point is valid... that someone who is willing to help a dog, is probably more willing to help a human.
As far as Christian infomercials go... you know I used to be involved in the "charity biz" so no, never would give my hard earned cash to organizations that require such huge overhead and advertising dollars. Added to that, the plight of many of these underpivileged people in third world countries is man-made, i.e. political in nature. I expect my government to deal with that... and they do, giving millions every year in aid. (Technically, some minute portion of that are both mine and your tax dollars at work, so I guess you are doing something after all.)