Resources are not equally distributed in Nature thus inequality in energy access is what fuels Evolution. Even if all humans had zero capital (tools, no mean of production, industry, bank, etc) we all have capabilities that are different from each other. This creates in itself inequalities.
Yes we're all different. Not sure how you would measure inequality.
If you're a really kind person supporting the people around you, perhaps the people around you will give you energy, and you will be part of the evolution.