Why is it difficult?

I came across this video yesterday, where a guys takes a homeless person to buy him new cloths, restaurant dinner and hotel room for 2 nights. I much appreciate the help that he did for that guy, but what happens 2 days later??? He is still homeless, jobless, food less, etc...
On the other side I see all these houses foreclosed and locked up for years...how is it FAIR that there are homes LOCKED out and still there are people on the streets. Living under the sky with no roof is cruel!!! As a human being with the 6th sense, what have we created? The society is supposed to be there to guide and make sure there is no inequality, no matter what...but it has clearly identified who gets what and who doesn't...as people we just try to go by the rules and fight to get to the other side!

Why did we create MONEY in the first place. What if we had stayed as farmers/weavers/cooks, etc. just doing stuff for our own food/cloth, we didn't have to invent the tread mill...we would be all equally fed and equally healthy.

With this crazy mechanical life, we are in fact working more, mostly by sitting at a desk, not being happy, then trying to find time to workout...lol.

We should go backwards, make machines that would require human power to operate, so we get the excise by doing actual work....your thoughts?