[crimsonalucard]

From the rich mans' perspective it's empathy. From the poor mans' perspective it's unfair and unjust and they feel a sort of jealousy for a person who extracts so much wealth from the economy.

We as humans are social creatures. We have evolved feelings of empathy and jealousy because it was effective for the survival of the social group.

The caveat is we've also evolved feelings that promote survival of the individual at the expense of the group. The task is to identify which feelings are aligned to self interest and which promote the survival of the group.

I would argue that feelings of jealousy, envy and vengeance do not promote survival of the individual. These feelings actually harm the individual when he acts alone. Instead I would say these feelings exist to promote more fair social behavior in big groups.

When wealth inequality becomes too extreme, poor people begin revolting.