How huge disasters can play tricks on the way we value life

People find it difficult to understand the true value of loss of life when the numbers are large. For instance, a study found that people are more willing to donate money to an organisation when just one of many identified victims' picture was shown, than when the same organisation was presented as one helping millions of people.

This sort of biased decision-making is the result of the "affect heuristic". Heuristics are shortcuts that our brains use to work through day-to-day life. In this case, the heuristic is the result of subtle feelings or faint whispers of emotion.

These affective judgements suggest that people comprehend reality in two fundamentally different ways – an intuitive, automatic and experiential one and an analytic, rational one. Most of the risk analysis and decisions come about quickly and intuitively by feelings arising from an experiential mode of thinking.

However, the domination of one form of thinking over the other can have detrimental results. One aspect of such worry is to do with the way we comprehend tragic and massive losses of life.

Response to genocide? Inaction

Psychological explanations suggests that a lack of an affective reaction will most often lead to equal inaction. That is why, in response to reports of genocide and widespread tragedies, we see large inaction. Rationally, every life should be equally valued and the value of saving X lives should be X times the value of saving one life.

Research, sadly, doesn't seem to corroborate this. People display diminishing sensitivity as the number of lives at risk increases. This is probably because, the importance of saving one life is easy to imagine, visualise and form an affective reactions to. However, larger losses are not so easily perceived with the experiential mode of thought, so we may not feel much difference in saving a 1,000 or 2,000 lives. We react intuitively, but we cannot affectively translate such information.

This type of affective numbing has been shown in people's willingness to fund lifesaving interventions. For instance, in a study people were asked to indicate the number of lives a medical research agency would have to save to merit a US$10 million grant. When the population at risk was 15,000, the answer, on average, was that 9,000 lives needed to be saved. Thus implicitly valuing each life at around $1,100 to warrant giving the money. However, when the population at risk was 290,000, the average response was to save 100,000 lives to warrant the grant – valuing each life at around US$100. So, 9,000 lives in the smaller population were seen as more valuable than saving 10 times more lives in the larger population.

Ebola risks

These are not theoretical questions. As we speak, the deaths caused by Ebola is increasing and so is the risk. The World Health Organisation has suggested that US$1 billion is needed to curtail the spread, and many people are deciding whether or not this cause is worth giving money to.

The natural and easy way of dealing with moral issues and ones involving catastrophic losses of life is to rely on our intuition and immediate affective reactions. These intuitions often fail us, and this is not a trifling failing.

Heuristics developed because they often prove to be useful. However, when a scenario shows its failing, what can be done to mitigate its destructive influence?

Helping makes you feel good

Several things could be suggested. Consider nudges in the right direction. We know for instance that helping and donating feels good. Making it a default to donate a slight amount when paying one's phone bill coupled with feedback on who in particular has been helped by this donation can lead to positive affect being linked to giving and propagated further.

Another point is developing techniques and working on assigning meaning to large numbers. For instance, large-scale losses of life could be extracted from their frames as simple statistics. Instead of saying hundreds were killed in the last few days, we could make the loss more salient. Perhaps by indicating that the number of people lost in this conflict so far equals an entire borough of one's city and so on.

Compassion, after all, is the basis of all morality. Giving and helping are hampered so much by the way we construe and act upon risk.

This story is published courtesy of The Conversation (under Creative Commons-Attribution/No derivatives).