Humans think much like monkeys and other primates, not much different in their abilities to reason. Why is this? We mimic, copy, imitate that which we see. This is a common thing that all higher primates do, including us. But if we would stop and think and allow original uninhibited thought to flow without fear of being chastised, cast out, imprisoned, punished, ridiculed or made example of, then we might really come up with some great innovations which would certainly propel mankind to better quality of life and higher standard of living.
We see where Bill Gates in a brain storming exercise allows for the challenging of the flow of new idea, stating