quality:correction
Characteristics of Extreme Altruists

In 1970, Schwartz hypothesised that extreme altruism is positively related to a person’s moral norms and is not influenced by the cost associated with the action. This hypothesis was supported in the same study examining bone marrow donors. Schwartz discovered that individuals with strong personal norms and those who attribute more responsibility to themselves are more inclined to participate in bone marrow donation. Similar findings were observed in a 1986 study by Piliavin and Libby focusing on blood donors. These studies suggest that personal norms lead to the activation of moral norms, leading individuals to feel compelled to help others.

Abigail Marsh has described psychopaths as the "opposite" group of people to extreme altruists and has conducted a few research, comparing these two groups of individuals. Utilising techniques such as brain imaging and behavioural experiments, Marsh’s team observed that kidney donors tend to have larger amygdala sizes and exhibit better abilities in recognizing fearful expressions compared to psychopathic individuals. Furthermore, an improved ability to recognize fear has been associated with an increase in prosocial behaviours, including greater charity contribution.

Rand and Epstein explored the behaviours of 51 Carnegie Hero Medal Recipients, demonstrating how extreme altruistic behaviours often stem from system I of the Dual Process Theory, which leads to rapid and intuitive behaviours. Additionally, a separate by Carlson et al. indicated that such prosocial behaviours are prevalent in emergencies where immediate actions are required.

This discovery has led to ethical debates, particularly in the context of living organ donation, where laws regarding this issue differ by country. As observed in extreme altruists, these decisions are made intuitively, which may reflect insufficient consideration. Critics are concerned about whether this rapid decision encompasses a thorough cost-benefit analysis and question the appropriateness of exposing donors to such risk.

One finding suggests how extreme altruists exhibit lower levels of social discounting as compared to others. With that meaning extreme altruists place a higher value on the welfare of strangers than a typical person does.

Analysis of 676 Carnegie Hero Award Recipients and another study on 243 rescuing acts reveal that a significant proportion of rescuers come from lower socio-economic backgrounds. Johnson attributes the distribution to the high-risk occupations that are more prevalent between lower socioeconomic groups. Another hypothesis proposed by Lyons is that individuals from these groups may perceive they have less to lose when engaging in high-risk extreme altruistic behaviours.