Inequality is bad for economy, democracy and society. 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.
There is a clear association between inequality and instability. People at the top don't spend too much, they save a lot but people at the bottom spend everything. So you redistribute income from the bottom to the top and demand goes down. That makes an economy weak. That is what happened in the US. We would have had a weaker economy, but the Feds stepped in by creating a bubble that created more demand to offset the demand that was going down. Of course, creating a bubble was creating instability.
The advocates of FDI have probably put too much emphasis on it. India is in a different position than a small, developing country. You have a large pool of entrepreneurs. They are globally savvy, have access to global technology and they have a lot of wealth. So, if there were large returns to large-scale supermarkets, the domestic industry would have supplied it. Not having access to FDI is not an impediment in India. Wal-Mart is able to procure many goods at lower prices than others because of the huge buying power they have and will use that power to bring Chinese goods to India to displace Indian production. So the worry is not so much about the displacement of the small retail store but displacement further down the supply chain.Joseph Stiglitz in The Times of India Here