Walmart workers are paid comparably to workers at Kroger and Target.

Walmart is able to charge low prices because they make up for it in volume. They make up for it in volume because they charge the lowest prices.

I hope the deals are worth it

It is. If mom and pop stores want to stay in business, they can take a hit to their paychecks so customers have a better deal. If they aren't willing to do that, then they shouldn't get to stay in business. It is business, after all. I'm not getting ripped off just to be nice to someone local, lol.