Humans confronted with scarcity (real or imagined) react with rational self-interest. They react more easily and strongly to perceived threats, become selfish for themselves and their in-group, and over-demonstrate their allegiance to that in-group.
Make people feel (economically) safe, that they have opportunities to accumulate wealth, and can generally do what they want. They'll be less fearful, and less afraid to see Others getting ahead as well.
Humans confronted with scarcity (real or imagined) react with rational self-interest. They react more easily and strongly to perceived threats, become selfish for themselves and their in-group, and over-demonstrate their allegiance to that in-group.
Make people feel (economically) safe, that they have opportunities to accumulate wealth, and can generally do what they want. They'll be less fearful, and less afraid to see Others getting ahead as well.