An example I am assuming (I am not OP) is that, if a whole Walmart opens near a mom and pop shop, economy should not care about them at all, they should not be looking at what the yare looking at, they should be considering their own profit.

Walmart is not responsible for what is going on with what happens to that mom and pop shop, it could be bankrupting and taking a whole family down and making them starve, it could get as bad as it gets, and we would be doing something terrible, but there is no emotion when finances are just numbers.

So we should definitely avoid that as much as possible if we feel human at all, but they are just not doing that, and that's the most obvious reason why we are seeing this.