How do people justify living in mansions knowing there is a homeless mother and her kid(s) on the street starving.
How can they
afford to live in mansions? They'd need a ton of money, obviously. So how did they get a ton of money? Assuming they didn't steal it, they'd have to have produced something useful for the community, that someone else was willing to pay for. Most people make money by doing useful work for the benefit of other people. Businesspeople make money by creating and maintaining businesses, without which the workers would be unemployed. Ultimately, everyone who isn't a thief earns money by helping others in some way or another.
That's not to say there's no room for charity, but just making a ton of money by honest means is pretty charitable on it own.
If you think Walmart hasn't done its fair share of shady business to become where it is today then you are oblivious. To get anywhere you have to be ruthless and cut throat to succeed. You have to not care about the other guy.
I guess I just answered my own question.