To your points: I have only seen these small store shopkeepers working really hard and helping out the local folks more than just running a shop.

The local folks also had a collective power over the shop - quality of products, prices, etc.

The customers will be exploited more now. These big chains you mention Big Bazar, D Mart, etc flood their stores with low quality things we don't need.

However - The article is about salesmen who supply these small stores. Your comment is off-topic.