Social justice is innate, not acquired

[youm]

National Geographic Channel showed an experiment conducted on two monkeys in two adjacent cages
The guard gave each monkey a small pebble, then asked them to return it to him. Then he gave each monkey a reward.
The first monkey returned the pebble to the guard, and he gave him a slice of cucumber. The monkey jumped for joy and began to devour the cucumber with appetite.
The second monkey returned the pebble to the guard, so he gave him a bunch of red grapes, which is a more delicious and greater reward, and when the first monkey saw that, his enthusiasm for the cucumber began to disappear.
The second time, the first monkey returned the pebble, and the guard gave him a slice of cucumber. He took it without enthusiasm and did not eat from it. He waited until he saw the second monkey’s reward. When he found it was a bunch of grapes, he threw the cucumber in the guard’s face in anger.
The third time, the guard gave the first monkey a pebble. He threw the pebble directly in the guard's face and did not wait for the reward. Although the first time he was happy with the cucumber slice, but when he saw others making the same effort and getting a greater reward, he hated the cucumber that he loved.
Experience has proven that social justice is innate, not acquired...and is not an exaggerated demand.