Delta_G:
The world is mean and heartless by nature. To imagine that there will ever be a society of any sort where some don't have it better than others is to be completely naive of human nature.
That is true. However banding together and providing a basic safety net for all makes sense, that is what welfare is. Anybody can fall ill or get injured.
There is a growing divide between rich and poor in the "developed" nations and that is not good. There is also the up and coming issue of automation and AI. That is why experiments have been taking place in various places with "universal income" to see what happens if everybody gets a basic salary as a right. There is nothing to stop them topping it up though.