Much of the inequality in the US arises out of rent-seeking -monopoly, exploitive practices by banks and corporate exploitation of public resources. In the Indian context, you will call it corruption but we call it corruption American-style, where you give away natural resources below market prices. India is doing it now but America has a long history of doing this.
New York City has rebuffed attempts by Walmart to open a store, making it one of the last remaining large US cities that the supermarket giant has failed to crack. Opposition to Walmart in the city is driven by what protesters say is the chain's history of low wages and poor employee benefits. There are also fears from unions that the company's low prices will hurt the profit margins of other shops, endangering the jobs of its members.