Your post describes what ugly human behavior you will see when something is desperately needed but is very scarce.

When it is food, water, space or shelter we should realize that these things are in fact not scarce, they're just unevenly distributed. There is enough wealth and resources on this planet for everyone, we should learn how to share it better.

Steem is an example of the giving economy. By showing the world what we can do with this platform, when we spread financial resources to people in places where a USD means a 100 times more then in the western world, you will see a change coming.

Slowly, but surely.