google economic inequality:

Was that useful? No. It is confused. It darts from economic to social, to economic, and back to social again.

Economic inequality is the yadda yadda between different groups in society.

What kind of groups are they? Must be economic groups (in society), what with some of them being "trapped in poverty" and all.

Little chance to climb the social ladder and get out of poverty? It's all a confused mess.

When people get together for their various reasons, that's "social". When they negotiate or exchange or accumulate things of value, that's "economic". It's easy.