It's not likely to happen that all of the people will become rich, there's a balance that is set to this world so there will be rich, middle class and poor. Actually the rich people aren't lazy at all, they are even the most hardworking people in the world. Watch the story on how these rich people waking up early in the morning as they value time. I want to get rich and if you consider that everyone should aim for it too, there's no problem at all. But we don't have the same type of motivation so what you are worrying is absurd.