Income inequality in the economy is present, yes, but economists are not in agreement whether it's a good or bad thing, and whether redistribution of wealth would even solve it [0]:

> Despite the extensive existing literature on income inequality and economic growth, there remains considerable disagreement on the effect of inequality on economic growth. Existing literatures find either a positive or a negative relationship. In this paper, we attempt to theoretically examine that relationship with a stochastic optimal growth model. We make the disagreement clear within a single model. We conclude (i) that both are possible – that is, higher inequality can retard growth in the early stage of economic development, and can encourage growth in a near steady state, (ii) that income redistribution by high income tax does not always reduce income inequality. Income inequality can be reduced by higher income tax in a near steady state, but it cannot be reduced in the early stage of economic development, and (iii) that two government polices – rapid economic growth and low income inequality – can be achieved by low income tax in the early stage of economic development, but both cannot be achieved simultaneously in a near steady state.

[0] https://www.sciencedirect.com/science/article/abs/pii/S02649...

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Now if you would like to submit literature on this topic, please do, as simply talking about what seems "natural" or "clear" does not really mean anything.