The level of altruism where the possible benefit is far exceeded by the possible cost simply is not an innate behavior. Natural selection would have killed it the moment it reared its genetic “head”.
There is no natural drive for behavior where the cost to self exceeds the benefit to self. Period.
I agree that some altruistic behaviors have to be taught, or at least have to be reinforced. But I would also contend that many altruistic behaviors are simply innate, with each of us possessing them to a greater or lesser degree.
For example, most women, from my experience at least, seem to think that babies are just the cutest things ever. I on the other hand, not so much. But it makes sense that evolution would endow women with a greater nurturing sense than men, because there are just certain things that women can offer a baby that men can’t. On the other hand, evolution seems to have endowed men with the role of protector and provider. Threaten what’s mine, and I’ll defend it. Both men and women seem to possess these attributes, but to greater or lesser degrees.
These behaviors could reasonably be defined as reciprocal altruism, born out of one’s own self-interest. But there are two distinct scenarios in which such behavior transitions from reciprocal altruism to selfless altruism. One is when that innate drive is so strong that it leads us to do things which aren’t actually in our own self-interest, but which we do without thinking them through. They’re simply born out our innate drive to nurture and protect. The woman who died trying to save the dog may be just such a case. She acted to save the dog without actually considering the danger that she was putting herself in, until it was too late. The second scenario is one in which one does indeed have time to consider the consequences, but the drive to act is so strong that it overcomes the percieved risk to one’s own self-interest.
I can think of many examples of such behavior, but perhaps the best example that I can come up with is to have you watch the following video, and then tell me what you would do if you were there.
youtube.com/watch?v=jK9oSB-mHOQ
WARNING!!! Viewer discretion is advised. (This video is blocked for minors by Youtube!)
My hope is that you would choose to act, even though it certainly wouldn’t be in your own self-interest to do so. You might argue that this is a perfect example of the type of act that evolution can’t select for. But I would argue that it’s the very drive to nurture and protect which will inevitably prompt you to act even when it’s not in your own self-interest to do so.
I agree that altruistic behavior can be taught, but I also contend that evolution has endowed us with a natural drive to nurture and protect, and that the strength of that drive is determined through natural selection to be the most evolutionarily beneficial to our species. The benefits that our species draws from such behavior outweighs the cost that it sometimes imparts.
We’re altruistic, because it’s evolutionarily beneficial to be altruistic.