The cartoon shows a person spanning a chasm or abyss, acting as a bridge with other people walking across.
The benefits of altruism are sometimes debated in evolutionary terms, sometimes arguing that altruism evolved because the good of the group is more important than the good of the individual. Altruism may also be seen as a form of display, where the altruistic individual is displaying his or her positive qualities to others, thus improving social status.
The illustration could also be interpreted as depicting exploitation, depending on context